Single gear bike.
Recently there has been a renewed interest in 650B size wheels and tires and bikes built with a single gear. The 650B rim is 25 mm larger than a 26" mtb rim but 38 mm smaller than the standard 700C road rim. Many believe this to be the ideal size for touring and commuting bikes. A single gear is often all that is needed on a commuter.
Here is a 650B bike that we recently built using some of the customer's own components.
Specification
of 650B single gear bike,Items marked * are not normally available. We will suggest alternates.
| Frame: | Mariposa, Reynolds 531 tubing. |
| Fork: | Mariposa, Reynolds 531 with wide sloping crown. |
| Headset: | FSA Duron. |
| Hubs: | Phil Wood. |
| Rims: | *Super Champion 650B |
| Spokes: | DT stainless, 14 G. |
| Tires: | *Michelin 650B |
| Chain: | Scram ½" x 1/8" |
| Crankset: | T.A. Pro 5 Pin with single ring and chainguard. |
| Sprocket: | Miche fixed. |
| Bottom bracket: | T.A. Pro Classic |
| Handlebar: | Nitto with leather covering. |
| Stem: | Nitto Technomic. |
| Brakes: | *Mafac Raid fitted to brazed-on bosses. |
| Saddle: | Brooks Swift. |
| Pedals: | Campagnolo Record SL with clips and straps. |
| Seat post: | Campagnolo stainless. |
| Carrier: | Mariposa front bag support. |
| Handlebar bag: | Gilles Berthaud. |
| Fenders: | Honjo with Mariposa custom stays. |
| Lighting: | LightSPIN generator with fender mounted front and rear lights. |
| Pump: | Zefal HPX. Painted to match frame. |
| Brazed-on pump peg on seat tube. | |
| Bottle cages: | Topeak stainless. |
| Finish: | Light grey/blue. Chrome crown, front and rear ends. |
Canada, Toronto, ON M4B 3H6