Can I use a Helix Direct Mount chainring on my XCX, TRS, or LG1 Crankset?



Answer: Yes, as long as you add the 1mm spacer included with the chainring to the mounting assembly.


Details: e*thirteen UL and SL chainrings were designed for use with XCX, TRS, and LG1 Cranksets. Helix chainrings were deigned for use with Helix cranksets. UL and SL rings are 1mm thicker than Helix chairings at the mounting location. Each Helix Direct Mount ring is supplied with a 1mm spacer which should be used when mounting Helix Direct Mount rings to XCX, TRS, and LG1. 


The following spacer assemblies should be used with Helix Direct Mount rings on e*thirteen cranks:


XCX Cranks:

  • Helix Direct mount ring + 1mm spacer included w/ Helix direct mount ring. 
    • Spacer should be installed first, then chainring.

TRS/LG1 Cranks:

  • Helix Direct Mount Ring + 1mm spacer included w/ Helix direct mount ring + 3mm of chainline spacers included with and already installed on crankset (Generally 1 x 2mm and 1 x 1mm).
  • See charts below for ring/spacer configurations.

Helix Cranks:

  • Helix Direct Mount Ring only.



Chainring / Spacer configurations for Helix rings when used with e*thirteen TRS and LG1 cranks with adjustable chainline:






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What chains are compatible with your chainrings?

Answer: All current chainring designs (Helix, Guidering SL, Guidering UL and E*spec are compatible all 12s chains on the market which we are aware of.

One exception is the SRAM™️ FlatTop™️ chain. This chains unique outer plate shapes limit it's compatibility to our chainrings which are 34t or smaller only 





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What chainring do I need for super-boost?


Super boost compatibility requires one of our cranks with the adjustable chainline feature (such as the current Generation 3 alloy cranks or the current Generation 4 Carbon cranks). You would then use one of our UL (-5mm offset) rings with the ring in the outermost postion and the 3mm of chainline spacers placed inboard of the ring. 


e*thirteen cranks without the adjustable chainline feature such as XCX and older generation carbon and alloy cranks are not super-boost compatible. 

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How long should my chainring last?

The telltale sound of a worn front ring is often a grinding noise which in some cases can be felt at the pedals under load while climbing in easier gears. So, how long should a ring last? That's not a really easy question to answer. Read below for more.

There are a large number of variables that go into how long a chainring will last. This makes it difficult to give a specific number of hours or miles before needing replacement. Some of those variables include riding conditions, chainring size, and drivetrain maintenance. 

With the advent of modern 1x drivetrains, chainrings do need to be replaced more regularly than when 3x or 2x systems were the norm. This is due to wear occurring only on 1 ring rather than being spread out over 2 or 3 rings. Additionally, smaller 1x chainring sizes are also common which also increases wear speed - a 28T ring will wear about 15% faster than a 32t. 

Also keep in mind that with smaller front chainrings, there may be cases where you will need to replace your ring due to wear before your chain is worn to a point requiring replacement. 

The best thing you can do is keep your drivetrain clean & well lubed and regularly check the chain for wear. 


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Chainring BCD diagram

Bolt circle diameter or BCD is the imaginary circle that passes through the center of all the chainring mounting holes. Most e*thirteen chainrings, bashguards and cranks use the most common BCD for mountain bikes, 64/104. We also make guiderings specifically for 120BCD SRAM cranks. Since measuring the actual BCD can be tricky, use this chart's B dimension to measure two adjacent bolt holes.




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Can I install a Guidering M on a non-e*thirteen crankset?

We optimized the chainline of the Guidering M to work best on e*thirteen cranks, but the 104bcd version will fit any 104 bcd crankset without inner chainring tabs.

Quick Connect rings feature an e*thirteen specific spline and are only suitable for e*thirteen cranks.

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Guidering M wear recommendations

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Does the Guidering M work as well with 9/10 speed as it does with 11 speed?

Guidering M technology increases chain retention on 9, 10 and 11 speed systems. However, due to the larger gaps between the plates on 9 and 10 speed chains, the level of retention is reduced when compared with 11 speed chains.

Adding a clutch rear derailleur will provide the best chain retention without a chainguide.

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Should I use a specific type/brand of chain with my guidering M?

For 11sp XX1 or XO1 drivetrains we recommend Sram’s XX1 or XO1 chain. For 10sp drivetrains we recommend high quality Shimano chains such as XT or XTR.

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How do I know when my Guidering M is worn out?

Wear and tear on a Guidering M is highly dependent on riding conditions and bicycle maintenance. If you keep the ring and your chain clean, it should provide excellent life.

Replace your chain based on your chain manufacturers recommendations, as your guidering M will wear considerably faster when used with a worn chain.


Like any ring, if you start to see a loss in it’s chain retention properties it’s probably time for a new one.


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Can I use a Guidering M on my double or triple crankset?

Guiderings are designed to be run as a single front chainring, as a result they do not have shift features that will allow your chain to move from one ring to the other. While they will fit on most 104mm BCD cranks they are only intended for single front ring use.

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What size chainring bolts do I need for my 104bcd Guidering M

For 32 tooth rings and larger, you will need chainring bolts with a 5mm T nut.

28 and 30 tooth chainrings should be installed with chainring bolts at least 6mm long.

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Are your Guiderings 9/10/11 speed compatible?

Yes, all of our cranks and chainrings are 9, 10 and 11 speed compatible.

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Do I still need to run a chainguide with the Guidering M?

It’s no secret we make chainguides - accordingly, we are pretty enthusiastic about keeping chains on. For the best chain retention with a minimal weight penalty, we still recommend a guide with an upper slider like our TRS+ guide, Guidering M notwithstanding.

As a new drive train ages, several factors can reduce the retention capability of the Guidering M including chain wear/stretch, ring wear, and rear derailleur clutch friction deterioration or failure.

For everyday riding, the Guidering M provides an exceptional level of chain retention when used with a clutch derailleur. Come race day, a 70g weight penalty for an TRS+ is a small price to pay for absolute peace of mind.

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