Road race
J.Laverack R J.ACK
2021 · 700c wheels · 8 sizes
Hand-made titanium rim-brake road race frame with a 130 mm rear axle, threaded BSA or T47 bottom bracket and clearance for 28 mm tyres at the front and 32 mm at the rear. J.Laverack offers Race and Classic geometries; these numbers are the published Race geometry with the 43 mm rake ÆRA caliper fork. The smallest size has a noticeably slacker 69.5 degree head angle than the rest of the range.
Source: www.jlaverack.co.uk/r-jack-frameset/
I ride:
Size run
Published geometry by size. How each size rides and fits for your rider profile loads with the page.
| Size | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
|---|---|---|---|---|---|---|---|---|
| Stack (mm) | 495 | 509 | 527 | 538 | 557 | 572 | 581 | 597 |
| Reach (mm) | 366 | 373 | 378 | 384 | 390 | 396 | 402 | 408 |
| Head angle (°) | 69.5 | 71.0 | 72.0 | 72.5 | 72.5 | 72.5 | 72.5 | 73.0 |
| Seat angle (°) | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 |