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Geometry charts are commonly misinterpreted, and the numbers don’t tell you how a change here affects a change there, or how the bike feels. And geometry charts never, ever address such critical issues as bar height, tire clearance, and overall comfort. So we submit the Romulus geometry for the sake of tradition, and in keeping with that, all specifications are subject to change without notice, on a whim. But we like the numbers you see here…
We’ve designed the Romulus so you can comfortably ride a larger bike than you’re on now. Learn your pubic bone height (PBH) and your saddle height (SH). To measure your PBH, stand with bare feet 10-inches apart, and measure from the floor to the pubic bone. Pull up hard, so the tape (held between two thin rulers or a thin book) strikes your bone, not just your soft tissue. Have a friend take the reading on the floor. Saddle height (SH) is the distance from the center of your crank (center of the bb axle) to the top of your saddle, parallel to the seat tube. Almost always, there is a 10cm difference. The figures below are typical. The standover heights here are with a 700x27 (686mmØ) road tire. It will be lower with a typical 700x23, and of course, higher with a 700x38.
| Frame Size | Wheel Size | Seat Tube | Head Tube | Top Tube | Fork Rake | Drop |
Chain Stay |
Stand Over* |
|---|---|---|---|---|---|---|---|---|
| 55 | 700c | 72.5 | 72 | 56 | 4.7 | 7.7 | 43.5 | 80 |
| 57 | 700c | 72 | 73 | 56.5 | 4.25 | 7.7 | 43.5 | 81.9 |
| 59 | 700c | 72 | 73 | 57.5 | 4.25 | 7.7 | 44.0 | 83.8 |
| 61 | 700c | 72 | 73 | 58.5 | 4.25 | 7.7 | 44.0 | 85.75 |
| 63 | 700c | 72 | 73 | 59.5 | 4.25 | 7.7 | 44 | 87.7 |
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