The only things that can stop Gwin

Product Overview

Overall rating:

Score 8

TRP Quadiem G-Spec


TRP Quadiem G-Spec disc brake review


Price as reviewed:


The TRP Quadiem G-Spec’s huge lever and chunky caliper gives off as strong sense they’re built to take some serious abuse and dish out some big forces.

>>> The best mountain bike disc brakes

Review by Charlie Collins

It wasn’t long ago that TRP were relatively unheard of in the mass market, but that’s all changed thanks to Aaron Gwin. The G-Spec is his signature version of their original Quadiem SL and has been developed with strong input from the man himself.

trp quadiem

Features including dimpled and drilled lever blades along with machined cooling fins to the calipers are additions to made over the standard brake. The form and size of their designs look as though they take inspiration from the world of moto.

The caliper finds itself as the only one on test without top loading pads. Now while this isn’t a huge issue, it restricts mud clearance and the ability to check for pad wear as easily.

At the other end, the free stroke in the large lever is significantly more than the Shimano Saint M810 or SRAM Code RSC, and this can’t be changed as there’s no contact adjuster to do so. Again, this isn’t too problematic as every brake that has this feature was set to the minimum stroke position, we’d just prefer to have less stroke from the outset.

Once bedded in, which took a little longer than the competition, the semi-metallic pads clamped well in both damp and dry conditions but we still struggled to get the strong bite we expected to find. There’s a serious amount of modulation as the power comes on, but the ending result never quite felt to the levels of the Code.


Weight:Brake 314g, rotor 150g
Rotors:160, 180 and 200mm