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Shimano FC-M6100 Deore 12-Speed Boost Chainset
- Forged crank arms rigid, incredibly strong & durable
- Lightweight aluminium chainring
- 55mm chain line for use with 148mm O.L.D. frames
Shimano’s FC-M6100 Deore 12-Speed Boost Chainset delivers precise power transfer and proven trail performance. Its standout HollowTech II design combines stiffness, strength, and efficiency for confident riding in demanding conditions. Designed for 148 mm Boost frames, it offers reliable compatibility with 12-speed Dyna-Sys drivetrains for smooth, consistent shifting on every climb and descent.
Key Features and Benefits:
- HollowTech II 2-piece design: Uses a large-diameter axle with wide bearing placement for superior stiffness and pedalling efficiency. The result is a more direct transfer of power and smoother performance under load.
- Forged crank arms: Built for high rigidity while keeping weight low. This balance enhances durability and delivers stable pedalling over rough terrain.
- Lightweight aluminium chainring: Reduces rotating mass for quicker acceleration. This material choice also resists wear, maintaining crisp shifting over time.
- Direct-mount chainring system: Simplifies installation and allows easy chainring swaps. This design improves drivetrain alignment for cleaner, more accurate gear changes.
- 55mm chainline for Boost frames: Ensures precise chain alignment on 148 mm O.L.D. setups. The result is smoother drivetrain operation and reduced wear on cogs and chainrings.
- 12-speed Dyna-Sys compatibility: Works seamlessly with Shimano’s 12-speed systems. This integration guarantees consistent gear transitions and optimal power delivery across the range.
The FC-M6100 Deore Boost Chainset focuses on efficient power transmission and mechanical reliability. The HollowTech II structure and forged crank arms deliver stiffness where it counts, while the aluminium chainring keeps the system light yet strong. Each feature contributes to dependable performance for trail, enduro, or cross-country riders who value responsive and consistent drivetrain function.
Built to handle real-world conditions with minimal maintenance, this chainset combines precision engineering and robust design for lasting performance. It’s a solid choice for riders seeking efficient power, durable construction, and reliable compatibility with modern MTB drivetrains.
| Chainring Size | 30T, 32T |
| Crank Arm Length | 165mm |
| Brand | Shimano |
| MPN | FCM61201A0, FCM61201A2 |
Our Payment Options
Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.
Finance Options
In order to get the kit you want, when you need it, we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.
D.T.(Automotives) Limited T/A Tweeks Cycles is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance, Klarna and Clearpay. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority. Klarna is unregulated credit. Clearpay is unregulated credit, use responsibly, T&Cs & late fees apply.
Our Finance Providers
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D.T.(Automotives)Limited trading as Tweeks Cycles offer interest free and interest-bearing credit on purchases £300 and over which is provided by V12 Retail Finance.
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We also offer Klarna, pay now, pay in 30 days or pay in 3 equal instalments.
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We also offer Clearpay pay in 4 instalments.
* Bike Delivery Info
A bike has to go though a Pre Delivery Inspection (PDI Check) prior to despatch, ensuring the bike is thoroughly checked and set up prior to you receiving. This also means an express delivery service is unavailable. We strive to despatch bikes within 3-5 working days. Please note this may change over school holidays and the festive season (November/December). For more information on the process please visit our pre-build page.
For international shipping please visit our delivery page.
For information about returning an item please visit our returns page.