Velocity A23 650B Single Speed-Fixed Gear-Gravel-Tubeless Ready Wheelset

These 650B Velocity A23s are a great, all-around single speed/fixed gear wheelset for those look for wider tires on 700C frames that can't accept wider tires. These are not 650C wheels (which are for small frames or track use). IMPORTANT: The diameter of these wheels are considerably smaller than traditional 700C wheels (38mm/1.5"). You will need to install at least 38mm, if not 42mm, tires to offset the size difference  to ensure your bottom bracket (and pedals) is not too low. If not installing on Wabi frames, we recommend measuring the inside width of your chain stays at about 13" from the axle center to determine what size can fit (with clearance on both sides). For Wabi frames, you can fit 42mm tires on Classics with about 3-4mm clearance and 2-3mm on Specials. This will lower the frame by just under a 1/2". We recommend 38mm tires for more clearance and it will lower the frame just over 1/2". If riding freewheel with brakes, you will need long reach brakes, like the Tektro R559s,