Spotted: Mysterious Full Suspension 650b Prototype
Sometimes things can hide in plain sight. That seems to be the case with these two prototype full suspension bikes we spotted in the parking lot of Snowbasin Resort. Sitting in the bed of a pick up, the bikes had clearly been ridden but had no distinguishing marks to be seen.
Details of the moto-link suspension after the break.
Both bikes were fitted with Sun Ringle Black Flag Pro SL 27.5″ wheels , leading us to believe it’s a shorter travel frame designed for the lighter weight trail segment. We’re guessing 120-140mm.
The suspension on the frame certainly looks crazy, but we think it’s probably an adjustable design for the prototyping phase only. The seat stays have at least two different positions that would probably allow for shock rate changes, along with what looks to be an additional bearing bore on the chainstays. Perhaps there is a separate seat stay that would mate to that?
On the Non drive side, the brake is mounted inside the rear triangle to a massive cast piece that forms the rear 142×12 dropout.
The frame has an integrated direct mount front derailleur tab, along with ISCG (05?) tabs.