Category Archives for "Drivetrain"

SRAM XX1 Gear Ratio Review

SRAM XX1 Ratios vs. 2 x 10 and Shimano 3 x 10

Seat Tube 444.5mm
Effective top tube 599.4mm
Head tube 108mm
Chain-stay 430.5mm
Wheel base 1153.9mm
BB height 345.4mm
Head angle 66°
Seat angle (effective) 71.5°
Reach Reach
Stack 591.3mm
Weight w/o pedals 27.1lbs (12.29 kgs)


Here we can see the gear range of the SRAM XX1 11-speed cassette combined with a 32 tooth front chainring. As you can see it features an extraordinary range and falls short of a multi-ring setup but not by much – take a look at the gear ratios chart above. With the 32-tooth up front, the lowest gear comes ever so close to a 2×10 drivechain that’s using the popular 26/39 chainring option. At the opposite end of the range, the top gear is very close to the second highest gear with said 2 x 10 combo – you only lose a gear and a half from the total range.

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