Gravel

Colnago G4-X

2021 · 700c wheels · 5 sizesUnverified

Colnago's carbon gravel race frame, sold in five sloping sizes named by their nominal seat tube length (450 to 570) and cleared for tyres up to 42 to 45 mm depending on which part of Colnago's page you read. Colnago does not publish head tube length, seat tube length or fork rake for this frame, and the listed front centre is Colnago's own measure. For the 570 size the geometry sheet gives a stack of 610 mm while the web table shows 600 mm; the 610 figure is used here because it matches Colnago's published horizontal top tube. Stock parts are from the SRAM Red XPLR build with the CC.01 Wide integrated cockpit. Colnago does not publish fork offset or trail for this bike. The offset used here (49 to 50 mm) is an estimate: where Colnago publishes enough of the geometry it is worked out from those numbers, otherwise it is the typical published offset of other bikes of the same type with a similar head angle. Stability and steering results for this bike depend on it, so treat them as approximate.

Source: www.colnago.com/en-us/products/g4-x-bike