John Kimmel said:I'm going to look at a Vision R-40. Can someone give me technical
information on the bike? I'd like to know whether it is adjustable for
riders between 5'6" and 6', the mechanics of adjusting for different
size riders, whether the conversion between LWB and SWB is a major
modification or simply a matter of switching parts around. I'd also like
to know opinions of the bike in general.
ATP Vision is of course out of business, so you are on your own if
anything Vision specific breaks. However, most repairs could be made
and/or parts replaced by a competent frame builder and machinist,
respectively.
The bike will fit the height range you mention. Changing seat to pedal
distance requires adjusting the boom and changing the chain length. The
bolts that secure the boom have an eccentric force applied to them, so
they should be replaced after a few adjustments, unless one enjoys
drilling and tapping to remove broken bolts. Due to these factors, the
Vision 40-series bikes are best suited for use by a single rider.
ATP Vision revised the frame design in 1999, lengthening the wheelbase.
The earlier models are twitchier, and require more attention to balance
and steering when riding. The stock components were also significantly
upgraded in 1999.
The SWB to LWB conversion is reportedly something that can be done by
anyone with basic bicycle mechanic skills in an hour or two.
--
Tom Sherman