Bike Seat Saddle Back Rest Cruiser Dragster Chopper Style Ideal VW Camper Show

Cruiser dragster chopper type bike saddle back rest lumbar support ideal vW camper show bike 
A very hard to find trike or bicycle saddle back rest that is seat post mounting on to any seat posts from 29.2mm to  30.4mm 
These are used by many people with special needs as extra support & comfort whilst riding
Seat post mount back rest with soft padding lumbar support
Made for use with trikes but we think this would be ideal on cruiser type bikes or could be used on other bikes
Lightweight alloy mounting arm with painted silver finish, bolts at same angle as your seat-post is in frame (non adjustable)
Sits approx  (180mm)further back from seat post
Height from saddle to rest (125mm)
Double bolt clamp that will secure on 29.2mm 30.4mm seat post sizes. 
Note: it maybe possible to use on smaller posts if shims are purchased (we do not have a specific shim available as they must be below 30.4mm size)
Clamp bracket size is 60mm so you must have sufficient seat post to clamp to
Vinyl padded back rest measures 290mm x 140mm (not adjustable)
Only 750grams (approx)