Technical Service Bulletins (TSB)

TSB #162 - CHAIN DERAILMENT ON E*THIRTEEN E*SPEC STEEL BOSCH CHAINRINGS

TECHNICAL SERVICE BULLETIN #162

May 25,, 2022 

Provided By:  e*thirteen Technical & Engineering Dept.

Direct Questions To: Support@ethirteen.com

Download the full TSB here: TSB #162

 

Chain derailment on e*thirteen e*spec steel Bosch chainrings 

 

THIS TECHNICAL SERVICE BULLETIN IS INTENDED FOR: 

Distributors, Dealers & End-Users

 

PRODUCTS INCLUDED

  • e*thirteen e*spec steel Bosch chainring
    •  34t Part# CR4USA-100 
    •  36t Part# CR4USA-101
    •  38t Part# CR4USA-102

 

BACKGROUND

  • e*thirteen produces steel e*spec chainrings for Bosch Ebike motors with 34t, 36t, and 38t options.
  • We have received reports in the field of chain derailment to the outboard side of the chainring when the motor is in higher power modes and the chain is in the small cogs of the cassette. 
  • e*thirteen believes chainline inconsistency originating at the spindle system or motor mount locations are the major contributing factors to this issue, combined with high torque (turbo) starts in a small cog. This issue has been reported across several bicycle brands using various manufacturers' chainrings.

 

RESOLUTION

  • The issue may be remedied by moving the chainline outboard by installing a 1mm spacer behind the e*thirteen steel e*spec chainring on the spindle or a wider chainline ring. The spacer location is shown in the image below. 
  • e*thirteen will supply 1mm spacers free of charge to customers experiencing this problem. The spacer is not compatible with e*spec alloy chainrings, and no such issues have been reported with those rings. 
  • Request a 1mm spacer through your sales rep, e*thirteen dealer, or directly through our support page here: e*thirteen support request.
  • Chainring lockring should be closely inspected and replaced if any signs of thread damage are present.

 

KEY POINTS

  • Chain derailment issues are present in a small number of cases when using e*thirteen e*spec Steel chainrings on e-bikes equipped with Bosch motors. 
  • e*thirteen believes the root cause is a combination of chainline and motor torque in smaller cogs. Increasing chainline has proven to remedy the problem. 
  • e*thirteen will provide a spacer to increase chainline and a replacement chainring for customers experiencing the issue in the field. 
  • Find our  user manual for Bosch e*spec crank and chainring install here: Bosch e*spec User Manual 
  • Install the 1mm spacer in the location shown in the diagram below:

 

Screen_Shot_2022-05-24_at_3.44.33_PM.png



 

About e*thirteen:

When the cycling world calls for reliable performance solutions, e*thirteen responds.

 

A global organization of expert designers, engineers, developers, manufacturers, marketers, sales teams, and customer service players, e*thirteen builds bold, best in class bicycle solutions for today and tomorrow’s riders. After 20 years of building unique solutions across a variety of industry needs, e*thirteen is a leader providing bike retailers and riders high performing products with one goal – To stay true to the promise of fearless engineering for the best possible and most reliable ride.  

Click here to view the full article »

/hc/en-us/articles/6192243539099-TSB-162-CHAIN-DERAILMENT-ON-E-THIRTEEN-E-SPEC-STEEL-BOSCH-CHAINRINGS
TSB #161 UPDATE FOR HELIX RACE CASSETTE USE ON EBIKES

 

TECHNICAL SERVICE BULLETIN #161

May 10, 2022 

Provided By:  e*thirteen Technical & Engineering Dept.

Direct Questions To:  support@ethirteen.com

Download full TSB here: TSB #161

 

UPDATE FOR HELIX RACE CASSETTE USE ON EBIKES

 

THIS TECHNICAL SERVICE BULLETIN IS INTENDED FOR: 

Distributors, Dealers & End-Users

 

PRODUCTS INCLUDED

  • e*thirteen Helix Race 11-Speed Cassettes
    •  9/46T part #s FW2HRA-106, FW2HRA-107, FW2URA-113
  • e*thirteen Helix Race 12-Speed Cassettes
    • 9/45T, part #s FW2HRA-100, FW2HRA-101 
    • 9/50T, part #s FW2HRA-102, FW2HRA-103, FW2HRA-104, FW2HRA-105, FW2URA-112

BACKGROUND

  • e*thirteen Helix Race Cassettes were released in 2021 with focused improvements on shift quality, weight reduction and drivetrain brand cross-compatibility.
  • Helix Race cassettes were developed for MTB use and not recommended for EMTBs at that time. 
  • For 2022, updates were made to Helix cassettes to strengthen key loading points to ensure ebike compatibility and e*thirteen now approves Helix Race cassettes for use on EMTBs. 

 

KEY POINTS

  • Product:
    • While still not considered our “e*spec rated” cassette, riders can now use Helix Race cassettes on EMTBs and retain the full benefits of their robust e*thirteen product warranty. 
    • The Helix Plus 9/50 12s cassette (Part# FW2HPA-100) and TRS+ 9/46 11s cassette (Part# FW2TPA-101) are our “e*spec rated” cassettes and are the best option for general EMTB use. 



_____

About e*thirteen:

When the cycling world calls for reliable performance solutions, e*thirteen responds.

A global organization of expert designers, engineers, developers, manufactures, marketers, sales teams, and customer service players, e*thirteen is dedicated to building bold,“best in class“ bicycle solutions for today and tomorrow’s riders. After 20 years of building unique solutions across a variety of industry needs, e*thirteen is a leader providing bike retailers and riders high performing products with one goal – To stay true to the promise of fearless engineering for the best possible and most reliable ride.  

Click here to view the full article »

/hc/en-us/articles/6192232819867-TSB-161-UPDATE-FOR-HELIX-RACE-CASSETTE-USE-ON-EBIKES
TSB #160 - INTRODUCTION AND CHANGEOVER TO GEN 2 7-SPEED CASSETTE

 

TECHNICAL SERVICE BULLETIN #160

May 17, 2022

 

Provided By:  e*thirteen Technical & Engineering Dept.

Direct Questions To:  support@ethirteen.com

Download full TSB here: TSB #160

 

INTRODUCTION AND CHANGEOVER TO GEN 2 7 SPEED CASSETTE

 

THIS TECHNICAL SERVICE BULLETIN IS INTENDED FOR: 

Distributors, dealers & end-users

 

PRODUCT INCLUDED

  • e*thirteen LG1 DH Wheels and hubs using 7s integrated driver. 
  • e*thirteen part numbers: WH3LRA-105, WH3LRA-108, WH4LPA-109, WH4LPA-110, HB3LRA-100, FWS10-104. 

 

PRODUCT NOT INCLUDED 

  • e*thirteen wheels and hubs using traditional style drivers - XD™, Microspline™, and HG™

 

BACKGROUND

  • e*thirteen’s Gen 1 Integrated 7s DH 9-21t cassette was released 5+ years ago to allow for wider hub flange spacing on DH rear wheels resulting in stronger and more reliable rear wheels. The incorporation of the 9T cog also allowed for DH bikes to use smaller front chainrings, permitting improved ground clearance and reduced likelihood of ring damage. 
  • In Q2 of 2022, e*thirteen’s Gen 2 Integrated 7s cassette is being released and will begin shipping on complete wheels, and as a service part for replacement. There are updates to the gearing, finish and shifting. 

 

KEY POINTS

  • Product:
    • Gearing updates: Gen 1 7s driver used a 9-21 gearing. Based on feedback from our world cup athletes, the Gen 2 7s driver has been updated to a 9-24t gearing. Our racers wanted a wider gearing range, but needed to maintain the tight gearing jumps on the high end of the cassette for their race runs. 
    • Shift quality improvements: Notable shift quality improvements have been made to the new 9-24 7s driver which incorporates shift features found on our highly acclaimed Helix Cassettes. 
    • Finishing improvements: Gen 1 7s cassettes used a black oxide finish. Gen 2 7s driver uses nickel plating for improved durability, corrosion resistance and a more technical appearance. 
  • SKU Changeover: 
    • Complete wheel & hub SKUs using our 7s cassette will not change
      • Gen 2 cassettes will be a running change on complete wheels/hubs 
    • Service part SKUs will change:
      • Old Gen 1 7s cassette: FWS10-104 is discontinued and no longer available. 
      • New Gen 2 7s cassette: FWS20-121 - e*thirteen | 7sp cassette | fits LG1 7sp rear hubs only | 9-24T | silver / EAN 4711280340613

 

FWS10-104.jpgFWS20-121.JPG

 

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About e*thirteen:

When the cycling world calls for reliable performance solutions, e*thirteen responds.

A global organization of expert designers, engineers, developers, manufacturers, marketers, sales teams, and customer service players, e*thirteen builds bold, best in class bicycle solutions for today and tomorrow’s riders. After 20 years of building unique solutions across a variety of industry needs, e*thirteen is a leader providing bike retailers and riders high performing products with one goal – To stay true to the promise of fearless engineering for the best possible and most reliable ride.  

 

Click here to view the full article »

/hc/en-us/articles/6192075286299-TSB-160-INTRODUCTION-AND-CHANGEOVER-TO-GEN-2-7-SPEED-CASSETTE
TSB #159 - SRAM™ GX™ XD 1275 cassette bushing fit on e*thirteen SL XD™ driver bearing



TECHNICAL SERVICE BULLETIN #159

February 8, 2022 

 

Provided By:  e*thirteen Technical & Engineering Dept.

Direct Questions To:  support@ethirteen.com

Download full TSB here: TSB 159

 

SRAM GX XD 1275 cassette bushing fit on e*thirteen SL XD driver bearing

 

THIS TECHNICAL SERVICE BULLETIN IS INTENDED FOR: 

Distributors, dealers & end-users

 

PRODUCT INCLUDED

  • e*thirteen XD™ drivers with exposed outboard bearing found on SL hubs with alloy axles when used in conjunction with SRAM™ GX XD™ 1275 cassettes 

PRODUCT NOT INCLUDED 

  • e*thirteen XD™ drivers with exposed bearing when used in conjunction with any cassette other than SRAM™ GX™ XD™ 1275 cassettes
  • e*thirteen HG™ and Microspline™ drivers
  • e*thirteen SL XD drivers used on hubs with steel axles. 

BACKGROUND

  1. e*thirteen and other industry companies license the XD™ driver standard from SRAM™ and design XD™ drivers in accordance with that standard. The XD™ Standard can be found here: https://www.xddriverbody.com/. Specifications of the standard include a partially exposed driver bearing at the end of the freehub body. 
  2. Late 2021, e*thirteen was made aware of issues created when demounting SRAM™ GX™ XG 1275 cassettes installed on our SL XD™ drivers, when used in conjunction with alloy hub axles. SRAM™ cassettes incorporate a plastic bushing which interfaces with the exposed bearing on the end of the XD™ driver. The bushing found on the SRAM™ GX™ XG-1275 cassette is a tighter fit than ones found on other SRAM™ cassettes and can extract the bearing from the shell of the driver during the cassette removal process. 

RECOMMENDED ACTION

Because the integrity of the bearing press in the driver is not impacted by bearing extraction from the cassette, YOU CAN simply press the bearing back in place in the driver with a small amount of Loctite 242 (or similar retaining compound) and reinstall the cassette using normal install procedure.

 

The correct spec for bearing protrusion with the SRAM™ XD™ Driver standard is 3.5mm +0.03mm/-0.53mm. A hard stop will be felt during the press operation once full insertion has been made. 

IMG_5055_2.JPG


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About e*thirteen:

When the cycling world calls for reliable performance solutions, e*thirteen responds.

A global organization of expert designers, engineers, developers, manufactures, marketers, sales teams, and customer service players, e*thirteen is dedicated to building bold,“best in class“ bicycle solutions for today and tomorrow’s riders. After 20 years of building unique solutions across a variety of industry needs, e*thirteen is a leader providing bike retailers and riders high performing products with one goal – To stay true to the promise of fearless engineering for the best possible and most reliable ride.  

 

Click here to view the full article »

/hc/en-us/articles/4418356266267-TSB-159-SRAM-GX-XD-1275-cassette-bushing-fit-on-e-thirteen-SL-XD-driver-bearing
TSB #158 - Vario Seatpost Travel Adjust Update

TECHNICAL SERVICE BULLETIN #158

November, 2021 

Provided By:  e*thirteen Technical & Engineering Dept.

Direct Questions To:  support@ethirteen.com

Download the full TSB here

 

TECHNICAL SERVICE BULLETIN #158 - VARIO SEATPOST TRAVEL ADJUST UPDATE

 

THIS TECHNICAL SERVICE BULLETIN IS INTENDED FOR: 

e*thirteen distributors, dealers & end-users

 

PRODUCT INCLUDED

e*thirteen Vario Seatpost - All lengths and sizes  

 

BACKGROUND

e*thirteen Vario droppers were released in 2020 and used a stepped bushing to allow tool free travel changes by simply rotating the bushing. 

 

Around the time the Vario was released, e*thirteen learned of a patent filed  in Taiwan which detailed a similar method of  achieving travel adjustment in a  seatpost. That application was subsequently granted, so out of respect for that parties invention e*thirteen is changing the method used to achieve travel adjustments of the Vario seatposts. 

 

RESOLUTION

Beginning in November 2021, Vario Seatposts began shipping with an updated travel adjust bushing assembly which replaces the original stepped assembly. The new assembly consists of a main bushing and a stack of 5mm shims which allow for the same level of adjustability as the original bushing simply by adding or removing shims. This process continues to be a tool-free operation and has no impact on Vario product specifications beyond the slight procedural change for adjusting the travel. 

 

The adjustable travel bushing will continue to be supplied in our Vario Seatpost Refresh kit and can be purchased as a service item in service item: SPS20-103 - e*thirteen | Vario Infinite Dropper Rebuild Kit | Incl. Collar, Seal, Adjustable Travel Bushing, Keys, Lower Bushing | Fits All Vario Posts

 

Owners manuals and technical support documents will be updated to show both travel adjust options.

 

See below for images of original and updated bushing





 

New_SP_Bushing.png

Bushing_Compare_Render_crop.jpg

 

 

RECOMMENDED ACTION

End users: No action needed.

Distributors & Dealers: Inform appropriate technical and sales entities within your company about the update. 



About e*thirteen:

When the cycling world calls for reliable performance solutions, e*thirteen responds.

A global organization of expert designers, engineers, developers, manufactures, marketers, sales teams, and customer service players, e*thirteen is dedicated to building bold,“best in class“ bicycle solutions for today and tomorrow’s riders. After 20 years of building unique solutions across a variety of industry needs, e*thirteen is a leader providing bike retailers and riders high performing products with one goal – To stay true to the promise of fearless engineering for the best possible and mostreliable ride.  

 

Click here to view the full article »

/hc/en-us/articles/4410589940251-TSB-158-Vario-Seatpost-Travel-Adjust-Update
TSB #157 - Shimano™ EP8 Spindle Inspection in Conjunction with e*thirteen e*spec Cranks

TECHNICAL SERVICE BULLETIN #157

Shimano™ EP8 Spindle Inspection in Conjunction with e*thirteen e*spec Cranks

Provided By: e*thirteen Technical & Engineering Dept.
Direct Questions To: support@ethirteen.com

Download Full Technical Service Bulletin: TSB 157

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THIS TECHNICAL SERVICE BULLETIN IS INTENDED FOR:
e*thirteen OEM’s, assembly factories, distributors, dealers & end-users

PRODUCTS INCLUDED:

e*thirteen e*spec cranks used on Shimano™ EP8 (DU-EP800) Motors . 

Part Numbers & Descriptions 

CS3EPA-100 e*spec Plus Crank | Shimano™ EP8 | 165mm 
CS3EPA-101 e*spec Plus Crank | Shimano™ EP8 | 170mm 
CS3EPA-102 e*spec Plus Crank | Shimano™ EP8 | 175mm 
CS3EPA-103 e*spec Plus Crank | Shimano™ EP8 | 160mm 
CS3EPM-100 e*spec Plus Crank | 160mm | Shimano™ EP800 | 178Q 
CS3EPM-101 e*spec Plus Crank | 165mm | Shimano™ EP800 | 178Q 
CS3EPM-102 e*spec Plus Crank | 170mm | Shimano™ EP800 | 178Q
CS3EPM-111 e*spec Plus Crank | 165mm | Shimano™ EP800 | 177Q | Intense MX 
CS3ERM-101 e*spec Plus Crank | Shimano™ EP8 | 165mm | Q 177
CS3ERM-102 e*spec Plus Crank | Shimano™ EP8 | 165mm | Q 177 

 

PRODUCTS NOT INCLUDED:

e*thirteen e*spec cranks used on ShimanoE7000 or E8000 motors. 

Note: While identical e*thirteen e*spec crank arms are used across ShimanoE7000, E8000, and EP8 (DU-EP800) motors, spindle failures have only been reported to e*thirteen on EP8 (DU-EP800) motors -- therefore Shimano™ E7000 or E8000 motors are not included in this TSB.

 

BACKGROUND

  1. e*spec alloy and carbon cranks were developed specifically for Shimano™ ebike motors and sold via OEM and aftermarket channels in 2020 & 2021.
  2. March 2021, e*thirteen was made aware of Shimano™ EP8 spindle failures when used in conjunction with a number of different brands’ cranks, including the e*thirteen e*spec cranks.
  3. e*thirteen took immediate action to diagnose the issue with extensive 3rd party lab testing and metallurgical analysis to understand the root cause.
  4. e*thirteen’s analysis suggests that some Shimano™ EP8 spindles may have manufacturing defects which over time, can develop into cracks with use and exposure to the elements.
  5. This Technical Service Bulletin, #157, suggests a safety inspection to verify the motor spindle integrity when these cranks are used in conjunction with the EP8 motor.

CURRENT STATUS

Currently e*thirteen cranks pass and exceed all bicycle testing standards applicable to these components (ISO, EN, DIN) -- e*thirteen is confident that our cranks are not the source of the issue.

RECOMMENDED ACTION

e*thirteen recommends inspecting ShimanoEP8 motor spindles to ensure no cracks are present before riding any EP8 equipped bike again and in doing so have provided a step by step process for doing this with images and instructions below.

The inspection is done by removing the crank arms, thoroughly cleaning the spindle, and closely inspecting the area located around the hole drilled through the spindle in the splined location.

Please see written instructions with visuals below. If any help is needed, please contact the e*thirteen support team at support@ethirteen.com.

While e*thirteen does not foresee any issues with e*thirteen cranks, we stand behind our products and have warranty policies in place for our products. Please view our warranty policy and request form HERE.

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INSTRUCTIONS FOR ARM REMOVAL PROCEDURE

Note: Procedure is the same for left and right arms and should be performed on both

STEP 1 - LOOSEN PINCH BOLTS
Loosen counterclockwise both 5mm pinch bolts which attach the crank arm to the spindle. Ensure they are fully loose by alternating bolts until a gap between the head of the bolt and crank arm is visible.

1.jpg

 

STEP 2 - REMOVE PRELOAD CAP

Using a 5mm hex key, loosen counterclockwise and remove the preload cap.

2.jpg   3.jpg

 

STEP 3 - REMOVE ARMS AND CLEAN MOTOR SPINDLE WITH DEGREASER

 

STEP 4 - CLOSELY INSPECT THE EXPOSED SPINDLE, PAYING PARTICULAR ATTENTION TO THE AREA AROUND THE CROSS-DRILLED HOLE. INSPECT BOTH INSIDE AND OUTSIDE THE SPINDLE (Using your smartphone camera and zooming in can give additional clarity)

INSIDE VIEW 

Text_on_Images-02.jpg Text_on_Images-07.jpg

OUTSIDE VIEW 
Note: Trough/groove marks pictured on the wide spline tooth and elsewhere on the spindle are manufacturing marks present from the factory. These marks are inconsistent, and may not necessarily be present on all spindles!

Text_on_Images-01.jpg Text_on_Images-03.jpg

 

STEP 5 - REINSTALL OR CONTACT THE APPROPRIATE PARTY FOR REPLACEMENT

  • If no crack is present, move onto the arm install procedure below.
  • If crack is present or you are unsure, contact your Bicycle Manufacturer or local Shimano Service Center for further instructions.

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ARM INSTALL PROCEDURE - Procedure is the same for left and right arms and should be performed on both.

STEP 1 - VERIFY PRELOAD CAPS HAVE A PRE-APPLIED THREADLOCKER PATCH.
Note: Preload bolts may appear visually different than shown in photo.

Screen_Shot_2021-10-13_at_8.26.00_PM.png

If threadlock patch is present, move on to step 2. If there is no threadlocker patch, move to the next point.

If preload cap has no threadlock patch pre applied, Clean inner and outer threads and apply 1 drop of Loctite 242 or similar light/medium threadlocker compound to the threads on the preload cap.

Alternatively, you can contact e*thirteen to be supplied with a preload caps with pre applied threadlocker.

STEP 2 - INSTALL ARMS ONTO SPINDLE
Note left vs right arms and slide onto the spindle and press them firmly in place.

STEP 3 - REINSTALL PRELOAD CAP AND TORQUE FASTENERS TO SPEC

Install and tighten preload cap to 2Nm

3.jpg Text_on_Images-05.jpg

Using a torque wrench, tighten crankarm pinch bolts using an alternating sequence until both bolts reach 14Nm. You will do this (2) times starting with the inside bolt (a) then the outside bolt (b), then repeat. Sequence = (a)(b)(a)(b)

Text_on_Images-04.jpg Text_on_Images-06.jpg


STEP 4 - REPEAT PROCEDURE ON OTHER ARM

STEP 5 - RECHECK PINCHBOLT TIGHTNESS AFTER 1-2 RIDES TO ENSURE 14Nm TORQUE ON PINCHBOLTS

 

 

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About e*thirteen
When the cycling world calls for reliable performance solutions, e*thirteen responds.
A global organization of expert designers, engineers, developers, manufactures, marketers, sales teams, and customer service players, e*thirteen is dedicated to building bold ,“best in class“ bicycle solutions for today and tomorrow’s riders. After 20 years of building unique solutions across a variety of industry needs, e*thirteen is a leader providing bike retailers and riders high performing products with one goal – To stay true to the promise of fearless engineering for the best possible and most reliable ride.

 

 

 

Click here to view the full article »

/hc/en-us/articles/4408312390043-TSB-157-Shimano-EP8-Spindle-Inspection-in-Conjunction-with-e-thirteen-e-spec-Cranks
TSB #156 - e*spec Shimano™ alloy crank tech update

TECHNICAL SERVICE BULLETIN #156.2

e*spec Shimano™ alloy crank tech update

Product(s) included: e*thirteen e*spec Shimano EP8 alloy cranks. 

 

Abstract

e*spec Shimano EP8/EP800 alloy cranks were developed specifically for Shimano™ ebike motors and sold via OEM and aftermarket channels in 2020 & 2021. This TSB highlights install torque updates and additional measures we have taken to address the issue highlighted below.

 

Issue

We have had reports of crank arm preload caps from affected cranks loosening up and falling off. If crank pinch bolts, which fix the arm to the axle, are not tightened to spec or properly tightened, it is possible that lack of cap and incorrect installation torque and/or install technique could lead to the arm loosening.

 

This situation has been misinterpreted by some to mean there is a failure of one or more system components. That is not the case, but all cranks should be checked for proper tightness before riding, and initial installations procedures should be updated. 

 

Solution

 

  • Threadlocker patch:
    • Early production preload caps did not incorporate a threadlocker patch to prevent loosening in the case that the cap was not properly tightened upon install. A threadlocker patch is now being used on all preload caps. Customers with caps lacking threadlocker patch can use light/medium strength threadlocker such as Loctite 222 or Loctite 242; or contact e*thirteen support for a replacement cap. 

 

  • Torque specification updates:
    • Original torque specification: Preload cap: 1Nm / Pinch bolts: 12-14Nm.*
    • Updated torque spec: Preload cap 2Nm / Pinch bolts: 14Nm.*

*Correct tightening procedure is critical. Please reference directions below

 

  • Inner seal removal: 
    • The seal found at the inner face of the crank should be removed from the assembly. This avoids potential false torque readings and provides an additional 1mm of interface between the crank and spindle.
    • Note: Removing inner seal must be done in conjunction with using the e*thirteen preload cap. Using non-e*thirteen preload caps may result in the cap bottoming out on the spindle before preloading the crank. 

 

image_2021_03_10T04_07_22_069Z.pngimage_2021_03_10T04_08_49_926Z.png

 

 

Arm Tightening Procedure 

*Note: Procedure is the same for left and right arms and should be performed on both.*

 

  • Step 1 - Verify if preload cap needs loctite applied, and apply if necessary.
    • Loosen counterclockwise both 5mm pinch bolts which attach the crank arm to the spindle. Ensure they are fully loose by alternating bolts until a gap between the head of the bolt and crank arm is visible. 

1.jpg

  • Step 2 - Identify if preload caps have a pre-applied threadlocker  patch and apply if necessary.
    • 2a - Using a 5mm hex key, loosen counterclockwise and remove the preload cap.

2.jpg

IMG_3633.JPG

    • 2b - If threadlock patch is present, move on to step 3. If there is no threadlocker patch, move onto point 2c.
    • 2c - If preload cap has no threadlock patch pre applied:
      • Clean inner and outer threads and apply 1 drop of Loctite 242 or similar light/medium threadlocker compound to the threads on the preload cap
      • or, Contact e*thirteen to be supplied with a preload caps with pre applied threadlocker

 

  • Step 3 - Reinstall preload cap and torque fasteners to spec. 
    • 3a - Install and tighten preload cap to 2nm

3.jpg4.jpg


  • 3b - Using a torque wrench, tighten crankarm pinch bolts using an alternating sequence until both bolts reach 14nm. You will do this (2) times starting with the inside bolt (a) then the outside bolt (b), then repeat. Sequence = (a)(b)(a)(b)


6.jpg5.jpg

  • Step 4 - Repeat procedure on other arm. 
  • Step 5 - Recheck pinch bolt tightness after 1-2 rides to ensure 14nm torque on pinch bolts. 

 

Click here to view the full article »

/hc/en-us/articles/360057823952-TSB-156-e-spec-Shimano-alloy-crank-tech-update
TSB 139 gen 3 BB manual error

Click below in download

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/hc/en-us/articles/206530875-TSB-139-gen-3-BB-manual-error
TSB 124 Fatbike PF30 BB

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/hc/en-us/articles/204081249-TSB-124-Fatbike-PF30-BB
TSB 112 LG1 pedal updates

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/hc/en-us/articles/204081219-TSB-112-LG1-pedal-updates
TSB 101 XCX e-type on Specialized frames

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Click here to view the full article »

/hc/en-us/articles/204081259-TSB-101-XCX-e-type-on-Specialized-frames