Rocky Mountain Underground (RMU), a brand traditionally rooted in the ski industry, has ventured into the mountain biking realm with the introduction of the Nighttrain—a 170mm travel enduro bike that seamlessly blends innovative design with aggressive performance. (bikemag.com)
Innovative Suspension and Drivetrain
At the heart of the Nighttrain lies a mid-pivot, six-bar flex stay suspension system, a modern iteration of Dave Weagle’s Orion design. This configuration offers a harmonious balance between efficient pedaling and exceptional bump compliance, ensuring riders maintain control across varied terrains. (bikerumor.com)
Complementing this is RMU’s dual-idler, dual-chain drivetrain. This setup elevates the chainline, reducing pedal feedback and enhancing power transfer efficiency. By employing two idler pulleys, the design minimizes friction and wear, resulting in a smoother and more responsive ride. (rmumtnculture.com)
Geometry Tailored for Aggression
The Nighttrain’s geometry is meticulously crafted to cater to aggressive riding styles. With a slack 63° head tube angle and a steep 77.5° seat tube angle, the bike offers stability during descents and an optimal position for climbing. Reach measurements start at 440mm for the S1 frame, extending up to 510mm for the S4, ensuring a comfortable fit across various rider sizes. (blisterreview.com)
Build Options and Pricing
RMU offers the Nighttrain in multiple configurations to suit diverse rider preferences:
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Frame Only: Priced at $2,499, this option includes the frame and a Fox Float X2 Performance Elite shock.
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Complete Builds:
- Shimano Deore: At $4,999, featuring a Marzocchi Super Z fork, Shimano Deore mechanical drivetrain, and Shimano Deore 4-piston brakes.
- Shimano XT Di2: For $6,999, this build boasts a Fox Factory 38 Grip X2 fork, Shimano XT Di2 wireless drivetrain, and Shimano XT 4-piston brakes.
- Shimano Saint DH: Priced at $6,499, it comes equipped with a Fox Factory 40 Grip X2 fork, Shimano Saint drivetrain, and Shimano Saint 4-piston brakes.
Each build is designed to deliver optimal performance, catering to both climbing efficiency and downhill prowess. (blisterreview.com)
Availability
The Nighttrain is currently available for pre-order, with shipments expected to commence in July. For more details or to place an order, visit RMU’s official website. (rmumtnculture.com)
RMU’s Nighttrain stands as a testament to the brand’s commitment to innovation and performance, offering riders a machine that excels in both technical climbs and aggressive descents.