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Bike component fitment: bottom bracket, headset, seatpost, axle

FD 286 vs FD 318: specs compared

Updated 05 September 2026.

3
specs differ

FD 286 and FD 318 differ on 3 specs: mount / band size, designation, typical frames.

SpecFD 286FD 318
Mount / band size28.6 mm (1 1/8 in) seat-tube clamp31.8 mm (1 1/4 in) seat-tube clamp
Designation28.6 mm band31.8 mm band
Typical framesround steel and older aluminium frames with a 1 1/8 in seat tube at the clampthe most common round-tube clamp size on aluminium road and touring frames

Questions and answers

How do FD 286 and FD 318 compare?

FD 286 and FD 318 differ on 3 specs: mount / band size, designation, typical frames.

Compared here

28.6 mm front-derailleur clamp (28.6 mm band)31.8 mm front-derailleur clamp (31.8 mm band)