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For the modern road, gravel and cross rider.
The SRAM Force AXS XG-1270 Cassette takes the need for an extra cog within the 12-speed road group and completely innovates the gear ratio options. The Force XG-1270 allows for a wider range of gearing for the modern road, gravel and cyclocross rider thanks to the XDR driver body being paired with the mountain-bike inspired 10-tooth cog. It features X-Range gearing technology to provide more gradual progression between cogs while performing efficiently.
- Designed specifically for electronic derailleurs for smoother and faster shifting.
- Features at least five one-tooth jumps for a smoother gear progression.
- Mini cluster construction reduces weight and increases durability.
- 10-tooth start helps provide a wider gearing range.
- Designed to work with an XDR driver body.
Ordered by Most Relevant First
Bigger Jumps On Most Used Cogs?
My LBS had a Jamis built up with Force eTap AXS, the Force 4633 chainrings and 10-33 cassette. I tested it on local hilly, paved roads. This cassette was quiet and smooth using the SRAM chain. What I noticed most was the easier cogs actually have bigger jumps compared to similar SRAM 11 or 10 speed cassettes. This cassette had spacing of 21-24-28-33 at the easy end, so jumps of 3, 4 and 5 teeth. My SRAM 10-speed 11-32 cassette runs 22-25-28-32, so jumps of 3, 3 and 4 teeth. I believe the SRAM 11-speed is the same. It felt less useful because the bigger jumps made it harder to find a comfortable gear for my desired cadence and actually fewer easy gearing choices.
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A guide to understanding and calculating bicycle gear inches.