Rear flat-mount calipers bolt up through the chainstay, so bolt length has to match the frame. Campagnolo offers six lengths; pick the one for your chainstay thickness.

How to choose

Measure the thickness of the rear flat-mount tab where the bolt passes through, then use the table below.

Options

Bolt lengthChainstay thickness
19mm10–14 mm
24mm15–19 mm
29mm20–24 mm
34mm25–29 mm
39mm30–34 mm
44mm35–39 mm

Compatibility & fit

For standard flat-mount rear chainstays (34 mm hole spacing) with Campagnolo flat-mount calipers, directly or through the rear adaptor. Caliper fixing torque is 6–8 Nm.

Fitting and bleeding are separate workshop services, not included in the price; Tune Cycles' workshop can do the job for you.

Campagnolo guarantees its components for 3 years from the date of purchase against defects in materials and workmanship (2 years for EPS/wireless power units and batteries). Normal wear and tear, crash damage, misuse and incorrect installation are not covered; keep your proof of purchase. For warranty support, return the product to Tune Cycles and we'll manage the claim with Campagnolo's Australian distributor.
  • Pair of rear caliper bolts
  • Six lengths: 19–44 mm
  • Matched to chainstay thickness
  • Genuine Campagnolo hardware
Contents2 bolts
Lengths19, 24, 29, 34, 39, 44 mm
Frame thickness range10–39 mm
SKU FES-P-24696
Brand Campagnolo