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Your drivetrain
50/34 · 11-34
Easiest · 34×34 26.6in 2.12 m · 7.1 mph at 90 rpm
Hardest · 50×11 121.0in 9.66 m · 32.4 mph at 90 rpm
- Range
- 455%
- Average step
- 10.8%
- Biggest step
- 14.3%
- Usable gears
- 20· 18 distinct
Steps between cogs: 11→12 +9%12→13 +8%13→14 +8%14→15 +7%15→17 +13%17→19 +12%19→21 +11%21→24 +14%24→27 +13%27→30 +11%30→34 +13%
Gear chart
Gear inches: wheel diameter × chainring ÷ cog.
| Ring \ cog | 11 | 12 | 13 | 14 | 15 | 17 | 19 | 21 | 24 | 27 | 30 | 34 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 121.0 | 110.9 | 102.4 | 95.1 | 88.8 | 78.3 | 70.1 | 63.4 | 55.5 | 49.3 | 44.4 | 39.2 |
| 34 | 82.3 | 75.4 | 69.6 | 64.7 | 60.4 | 53.3 | 47.6 | 43.1 | 37.7 | 33.5 | 30.2 | 26.6 |
| Step | — | +9% | +8% | +8% | +7% | +13% | +12% | +11% | +14% | +13% | +11% | +13% |
Easiest (climbing) Hardest (flats and descents) Cross-chained: big ring with the biggest cogs, or small ring with the smallest. It works, but the chain runs at an angle, makes noise and wears faster.
Compare with another drivetrain
Is it low enough for climbing?
Enter a grade, your weight with the bike and the watts you can hold on a climb. We’ll tell you the cadence you’d turn in your easiest gear.
You’d ride at 6.1 mph · 8%
Cadence in your easiest gear
77 rpm
In 34×34 you’d pedal at 77 rpm. You have gears to spare.
Cadence in your easiest gear by grade
| Grade | mph | rpm |
|---|---|---|
| 4% | 10.4 | 132 |
| 6% | 7.8 | 98 |
| 8% | 6.1 | 77 |
| 10% | 5.0 | 63 |
| 12% | 4.2 | 54 |
| 15% | 3.5 | 44 |
| 18% | 2.9 | 37 |