or Allen Key Only system that utilises only allen keys to adjust the springs

on top of that it has sealed front hub and rear cassette hub

SPOKE HOLES: 36H

Both hubs have been designed so that all the hardware is interchangeable

cnc machined

Eclat Servo Driver Hub Guard Colour:Raw or Allen Key Only systemFor those of you who are stuck for a hubguard solution or are running a looseball rear hub, we came up with the Servo Universal hubguard. CNC machined out of super tough Chromoly, the Servo is only 1. 8mm thick and slides on over the top of the existing hardware and protects your hub from damage. Note: This universal design will fit the majority of hubs on the market, but there may be some exceptions. To be 100% sure on compatibility, clat recommends