Hi all, I've been enjoying regular rides on both our CT1 and CT2s. The CT1 runs like a dream and pulls up steep hills with little effort. The CT2 on flats or hills seems to have a pronounced vibration coming through the foot pegs at higher RPMs. While it pulls the same hill ok in lower gears I'm noticing it bogs down a bit in higher gears. I'm thinking the vibration is likely caused by worn crank bearings but as I've not experienced this vibration in other bikes I'm hoping anyone who has seen this happen can verify. Thanks in advance.

Left main loose is easy to check just grab the flywheel & up n down check. But my guess is simply loose engine mount bolts. There's one down under at the rear--larger size that can be missed. Even crack them free & bring them up again if not sure. Won't be right side main, they last well & are bolted up solid. Be sure--if left is loose--that the the shaft isn't turning in the bearing, as a new bearing will still come up loose. Also if loose & you move it out a couple of mm as you pull it off the crank, it'll go tight as it slides along the true shaft size & might have to build up the crank where worn. Bearing would slightly wear too. Anyway--woffling about not much sorry.

Thanks RT. I'll follow your advice and will post my findings. Much appreciated!