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Big Twin
Posts: 1,956
Join Date: Mar 2005
Location: Normally in my own little world
Mood: I own a flame thrower
To convert a Mono to BP you will need the steel subframe as it's designed to take the weight of 2 plus it has the lugs for rear foot pegs.
Being as the mono seat fits the BP subframe without modification I would assume that the seat units and subframes are all interchangable and will fit the frame OK.
[Edited on 13-5-2006 by Carbon749]