15mm Thru Axles

The endcap you require will depend on the size of the bearings in your front hub. The vast majority of front hubs e*thirteen has produced use 6805 cartridge bearings and require HBS20-103. HBS20-103 works on both boost and non-boost 15mm hubs.

e*thirteen has also produced front hubs which use 6804 cartridge bearings. The best way to identify which endcap you need is to measure the OD (Outside Diameter) of the bearing or bearing bore in the hub shell. 

6805 bearings measuring 37mm OD: use endcap part number HBS20-103 for the standard endcaps or if you are running a Torque Cap™️ compatible hub part number HBS20-100.

6804 bearings measuring 32mm OD: use endcap part number HBS20-105 or if you are running a Torque Cap™️ compatible hub part number HBS30-108.

20mm Thru Axles

In 2018 the first Boost 20mm DH Forks hit the market. Because of the differences in spacing, you cannot convert your old 110x20mm non-boost hub to a 110x20mm Boost hub by simply switching endcaps as the hub shell assembly itself is different. You can however, convert a 15x110 boost hub (with 6805 bearings) to a 20x110mm boost hub by purchasing HBS30-101 Boost 20mm endcaps.

Selecting endcaps:

Reference your DH fork manufacture to determine if you have a boost or non-boost fork.

• If you have a non-boost 20mm fork, HBE.TLPA-2010.K should be purchased for use with a non-boost hub shell assembly.
• If you have a boost fork HBS30-101 should be purchased for use with an LG1 boost hub shell assembly.