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

FD 286 vs FD 349: specs compared

Updated 05 September 2026.

3
specs differ

FD 286 and FD 349 differ on 3 specs: mount / band size, designation, typical frames.

SpecFD 286FD 349
Mount / band size28.6 mm (1 1/8 in) seat-tube clamp34.9 mm (1 3/8 in) seat-tube clamp
Designation28.6 mm band34.9 mm band
Typical framesround steel and older aluminium frames with a 1 1/8 in seat tube at the clampoversized aluminium and some mountain frames with a large-diameter seat tube at the clamp

Questions and answers

How do FD 286 and FD 349 compare?

FD 286 and FD 349 differ on 3 specs: mount / band size, designation, typical frames.

Compared here

28.6 mm front-derailleur clamp (28.6 mm band)34.9 mm front-derailleur clamp (34.9 mm band)