The Mission Backrest with Side Supports fits a 28.6 seatpost
FEATURES:
+ includes a shoulder belt (similar to a car seat belt)
+ Backrest measures 11" x 9"
+ It is attached to the cycle by a clamp that is attached to the seatpost.
+ With shims it is possible to fit to most cycles that have a seatpost.
+ The backrest comes complete with an adjustable back support, adjustable side support arms and strap.
+ To fit the backrest to your existing seat post you need a minimum of 62 mm of exposed seat post