Here are the maximum wheelbases for each of our roof top bike mounts
HighSpeed - 48" / 1220 mm
Highroad - 48" / 1220
ForkChop - 50" / Crossbar spread must be +/- 10" of your bikes wheelbase
FrontLoader - 48" /1220
ForkLift - 48" / 1220 mm
Raptor Aero - 48" / 1220 mm
If you have further questions please contact us here, or by phone at 888-925-4621 during business hours.