Shimano SLX M7100 Crank | 12 speed FC-M7100 | Hollowtech II | 53mm chain line | (no chainring)

Description

Shimano SLX M7100 FC-M7100 HollowTech II Crankset (No Chainring) – 12 Speed MTB

The Shimano SLX M7100 HollowTech II Crankset is built for serious all-mountain and trail riders who demand a perfect balance of durability, stiffness, and low weight. Designed for aggressive MTB use, this crank delivers Shimano’s proven reliability with excellent value for performance-focused builds and upgrades.

Featuring hollow forged crank arms, the SLX M7100 provides outstanding rigidity while keeping weight low, giving you efficient power transfer on climbs and confident control on descents. The HollowTech II integrated bottom bracket system uses a large diameter axle and wide bearing placement to maximise stiffness, efficiency, and long-term durability even under hard riding conditions.

With a 52mm chain line, this crank is optimised for modern Boost 142/148mm O.L.D. frames, ensuring perfect drivetrain alignment and smooth shifting when paired with Shimano 12-speed HG+ MTB chains. The Direct Mount interface is designed specifically for the 12-speed SM-CRM75 chainring (sold separately), which features Shimano Dynamic Chain Engagement technology for improved chain retention and pedalling efficiency.

A reinforced 70-degree spider arm design enhances rigidity under load, making this crank ideal for technical terrain and aggressive trail riding.

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Key Features

• Shimano SLX M7100 series crankset (FC-M7100)
• HollowTech II hollow forged crank arms for strength and reduced weight
• 12-speed MTB compatibility (HG+ chains only)
• 52mm chainline for Boost 142 / 148mm O.L.D. frames
• Direct mount interface for SM-CRM75 chainring (sold separately)
• High stiffness 70° spider arm design
• Lightweight, durable, all-mountain performance focus

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Specifications

• Brand: Shimano
• Model: FC-M7100 (SLX)
• Speed: 12-speed
• Discipline: MTB / Trail / All-Mountain
• Chainline: 52mm
• Crank Arm Lengths Available: 165mm / 170mm / 175mm
• Q-Factor: 172mm
• Bottom Bracket: Shimano HollowTech II (required)
• Chainring: Direct mount (SM-CRM75 compatible, not included)
• Technology: HollowTech II / Hyperglide+ / Dynamic Chain Engagement

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Why Choose the Shimano SLX M7100 Crankset?

The SLX M7100 delivers near XT-level performance at a more accessible price point, making it one of the best-value cranksets in Shimano’s MTB range. It’s built for riders who want reliable drivetrain performance, long-term durability, and modern 12-speed efficiency without unnecessary weight or cost.

Whether upgrading or building a new MTB, this crankset provides a solid, race-ready foundation for demanding trail use.

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Why Choose Hopkinson Cycles?

At Hopkinson Cycles, we don’t just sell bike parts—we understand them. Every product is selected and described with real technical knowledge and rider experience behind it.

• 🚚 Free, fast UK postage
• 🧠 Professional cycle expertise
• 👨‍👩‍👧 Family-run business
• 📞 Direct customer support from real cyclists
• 🏪 In-house stock and dispatch (no drop-shipping delays)

Need help choosing the right crank length, chainring, or compatibility? We’re happy to help.

🌐 www.hopkinsoncycles.com
📧 info@hopkinsoncycles.com
📞 01924 274209