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Description
The Specialized Fuse M4 Mountain Bike Frame provides the perfect foundations for a burly, rugged and lively trail bike build. Made from M4 aluminium, it’s lightweight and strong, and it possesses an oversized diameter downtube to guarantee excellent power transfer when the pedals are being stomped on up the steepest inclines. In addition, the low-slung top tube increases manoeuvrability, enabling the bike to be flicked in and out of tight corners, while shaped seatstays grant plenty of room for high-volume, high-traction 29" tyres.
The geometry provides a long reach, ensuring the rider is positioned with perfect poise over the trails, while the slack head and steep seat angles ensure composed handling and an efficient pedalling position. Adjustable dropouts increase the frame’s versatility, allowing it to be run geared or single-speed. Additionally, these dropouts permit the chainstay length to be altered by 15mm, finely tuning the handling according to the riding conditions.
Frame | Specialized M4 Premium Aluminium, 148mm thru-axle, adjustable dropout, SS compatible, tapered head tube, internal cable routing, thru-axle included |
Seat Post Clamp | Specialized alloy, 38.6mm |
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Important Update for Our US Customers
We regret to inform you that due to ongoing challenges related to current US tariffs, shopping on Sigma Sports is temporarily unavailable for customers based in the United States.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our US community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
If you require any further assistance, please reach out to the customer services team
— The Sigma Sports Team