Like its Red XG-1290 cassette, SRAM claims the 1270 is specifically designed for electronic derailleurs offering smoother and faster shifting. Where it differs is in its use of pinned cogs versus a fully machined cluster where it gains some grams but is significantly less expensive. It's Mini Cluster construction of steel reduces weight and increases durability and offers a longer lifespan when compared to cogs made of titanium or aluminum. It's only compatible with wheels using an XDR freehub driver, however, many companies already offer the driver so there's a good chance all your wheel needs is a simple freehub swap.
- SRAM's Force-level 12-speed road cassette
- X-Range gearing technology offers smoother and faster shifting
- More durable than titanium or alloy cogs
- 10-tooth starting cog helps provide a wider gearing range
- Engineered to work with an XDR driver body
- Mini Cluster construction reduces weight and increases durability
- More gradual gear progression between cogs for efficient pedaling