Description
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, and you can opt to stay with 170mm crank arms (though 165mm will be less likely to have pedal strike on turns). If riding fixed, we highly recommend 165mm crank arms to prevent pedal strike.
This wheelset features Velocity A23 rims, which are specifically designed to provide a more aerodynamic design with narrower tires. You can also run them tubeless for both road and CX riding. The rims are paired with a high flange sealed bearing hub and double-butted spokes.
Specs
- Black Velocity 23 rims with silver machined braking surface.
- Internal rim width of 18mm. Profile of 19.5mm
- Tubeless compatible.
- 32 spokes front and rear laced 3 cross
- Silver Sapim Race spokes
- Silver Velocity solid flange track hub with sealed bearing.
- Fixed/freewheel threading.
- Front Axle: 9x1 Threaded / Rear Axle: 10x1 Threaded
- Silver brass nipples
- 100mm front spacing, 120mm rear spacing
- Inclues tubeless rim tape installed.
Notes
The decal is removable on these rims if you are looking for a cleaner look.