The latest Brother offering is pure fun. 631 steel, no brake drillings, tighter clearances, and steeper angles than their standard track frames, this frame is light and tough enough to use on the Velodrome or to race around the city.
- Reynolds 631 main tubes
- Reynolds threaded round-blade fork
- Tight clearances for 23c tyres
- Undrilled front and back
- Long point lugs
- 120mm rear spacing
- 68mm ISO BB shell
- Takes a 1" 26.4mm threaded headset
Size | 53 | 55 | 57 | 59 | 61 | |
Seat Tube Centre to Centre | 505 | 525 | 545 | 565 | 585 | |
Seat Tube Angle* | 75.5 | 75 | 75 | 74.5 | 74.5 | |
Top Tube Effective | 530 | 540 | 550 | 565 | 575 | |
Fork Rake | 32 | 32 | 32 | 32 | 32 | |
Head Tube Angle* | 74.5 | 75 | 75 | 75 | 75 | |
Bottom Bracket Drop | 55 | 55 | 55 | 55 | 55 | |
Chain Stay Length | 385 | 387 | 387 | 388 | 388 | |
Max Tyre Clearance | 23c | 23c | 23c | 23c | 23c | |
Rack Mounts | No | No | No | No | No |
* These are measured in degrees, the rest in mm.
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