Fsa Headset Bearings Giant Od2 Variant:45x45 1.5 - 46.9OD x 37ID x 7H - MR137 - GIANT ROAD OD2 LOWER Fits: See below for FitmentNote:

Fits:    See below for FitmentNote: This axle is not compatible with Evil Bikes

Storage system fits most any road bike

While motion plates add a new dimension of realism to your ride

While the fancy quick release is gone the tool is as functional as it's always been

Weight: 56g (Ceramic) and 64g (Standard)

Fsa Headset Bearings Giant Od2 Variant:45x45 1.5 - 46.9OD x 37ID x 7H - MR137 - GIANT ROAD OD2 LOWER Fits: See below for FitmentNote:Headset bearings for Giant OD2 headsets, with some models available in different material options. SL Light bearings have an alloy outer race to reduce weight, although expect more frequent replacement intervals than with chrome steel or stainless bearings. Please refer to the schematics in the gallery for reference, and compare bearing OD (outer diameter), ID (inner diameter), height and angle measurements to determine the correct size.