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Shimano Adds a Short Cage XT Derailleur and More Cranks to the Line

Adding versatility to its robust lineup of 12-speed mountain bike components, Shimano announces new crankset and derailleur options to suit a wider range of mountain bikes and rider preferences. Two new cranks - including an XTR option - feature 55mm chainlines, providing riders with more clearance for modern bike designs that include wider chainstays. Additionally, Shimano announces the new Deore XT short cage rear derailleur that offers more ground clearance for aggressive riding while maintaining Shimano’s hallmark fast, smooth, and accurate shifting.

New Shimano 12-Speed Cranksets

To accommodate new mountain bike frame designs and progressive riding styles, Shimano offers two new cranksets (FC-M9125-1 and FC-M512-1) with a 55 mm chainline. This new 55mm chainline option complements Shimano’s FC-M9100 (51 mm) and FC-M9130 (56.5 mm) cranksets, delivering compatibility for a diverse range of mountain bike designs. Both are designed for use with 157mm wide O.L.D. rear wheel hubs and feature direct mount chainring installation.

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FC-M9125-1 - Shimano XTR Crank

  • Available crank lengths: 165mm, 170mm, and 175mm
  • XTR chainring options: SM-CRM95 (30, 32,34,36T)

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FC-512-1 - Shimano DEORE-Level Crank

  • Available crank lengths: 165mm, 170mm, and175 mm
  • Available chainring sizes: 30T or 32T

Derailleurs
Shimano’s new short cage Deore XT rear derailleur provides better ground clearance for more aggressive trail riding. It also supports
faster riding and smoother rear suspension movement thanks to a reduction in unsprung weight of the drivetrain.
Shimano’s new Deore XT derailleur still offers all the technologies and benefits of Shimano’s 12-speed rear derailleur platforms such as fast and precise shifting performance, bigger 13T pulley wheel, and stable drivetrain in rough terrain.

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RD-M8100-GS - Shimano Deore XT Derailleur

  • Designed for Shimano’s 10-45T 12-speed cassette
  • 28mm shorter than RD-M8100-SGS long cage derailleur
Head to bike.shimano.com for more information.
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