Shimano
Ultegra CS-R8101
Smooth, precise shifting for road riders who demand reliable performance on climbs and long rides. The CS-R8101 delivers effortless gear changes with Hyperglide+ technology, available in versatile 11-30T and 11-34T ranges.
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12-speed road cassette
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Available in 11-30T or 11-34T gear ranges
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Hyperglide+ (HG+) shifting performance
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Nickel-plated steel cogs
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Aluminum cassette spider for reduced weight
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Compatible with HG+ 12-speed road freehub only
Ideal for riders seeking a high-performance cassette that balances smooth shifting, durability, and a gear range suitable for both flats and climbs.
Shipping information
Ships in 2–3 business days with free delivery across Canada on orders over $99. Same‑day pickup available Tue–Sat (closed Sun–Mon).
Returns & warranty
Enjoy hassle‑free returns within 30 days on unused items in original packaging (excludes bikes and sale items). Free in‑store returns anytime.