GOLDIX M370 XC Mountain Bike Hub 28H · Straight Pull · 36T / 60T Ratchet · HG / XD / MS · Standard & Boost Options The GOLDIX M370 is designed specifically for XC mountain bike applications. It combines a lightweight 28-hole straight-pull hub structure with a high-strength ratchet drive system and multiple axle and freehub configurations. With HG / XD / MS freehub options, standard and Boost axle specifications, and optional 36T ratchet systems, the M370 is suitable for a wide range of XC mountain bike wheel builds. Product Specifications Brand: GOLDIX Model: M370 Application: XC / Mountain Bike Spoke Holes: 28H Spoke Type: Straight Pull Freehub Options: HG / XD / MS Standard Ratchet: 36T Weight: Please refer to the product weighing images Front Hub Options 100 × 9mm 100 × 15mm 110 × 15mm Boost Rear Hub Options 135 × 10mm 141 × 10mm 142 × 12mm 148 × 12mm Boost Please carefully confirm your frame and fork axle specifications before ordering. Freehub Body Options HG Freehub Suitable for compatible HG-type 8–11 speed cassettes and selected compatible 12-speed HG cassette systems. XD Freehub Suitable for compatible XD-type 11–12 speed cassettes. MS Freehub Suitable for compatible MS-type 12-speed cassettes. HG, XD and MS are different cassette interface standards and are not interchangeable. Please confirm your cassette interface before purchasing. Selecting the wrong freehub body may result in installation failure. The M370 is equipped with a 36T ratchet system as the standard configuration, offering a balanced combination of engagement response, durability, pedaling efficiency and reliability for everyday XC riding. High-Strength 20CrMoTi Ratchet The ratchet components are manufactured from high-strength 20CrMoTi alloy steel, designed to withstand repeated engagement and high pedaling loads during mountain bike riding. Ratchet Material: 20CrMoTi Core Hardness: ≥ HRC55 Surface Hardness: ≥ HV2000 Maximum Torque: ≥ 400 N·m Fatigue Resistance: ≥ 100,000 Cycles at 250 N·m The hardened engagement surfaces provide excellent wear resistance and help maintain stable performance over long-term use. Stable Power Transmission The ratchet engagement system is designed to distribute pedaling forces across the engagement surfaces, helping provide reliable and consistent power transfer. The optimized structure provides direct pedaling response, stable engagement, high torque capacity, improved wear resistance and consistent performance under repeated loads. 28H Straight-Pull XC Design The M370 uses a 28-hole straight-pull spoke configuration, designed to provide a good balance between lightweight performance, wheel stiffness and spoke tension stability. The straight-pull structure also provides a clean wheel-building layout and is especially suitable for performance-oriented XC mountain bike wheels. Standard & Boost Compatibility The M370 offers multiple axle configurations for different frame and fork standards. 100mm / 135mm / 142mm options are available for compatible standard configurations, while 110 × 15mm front and 148 × 12mm rear are designed for Boost applications. The 141 × 10mm rear option is intended for compatible QR Boost-type frames. Do not select axle specifications based only on wheel diameter. Always verify your actual fork and frame dimensions before ordering. Weight Notice Please refer to the actual weighing images shown on the product page. Due to differences between production batches and manual measurement, the actual product weight may vary by approximately ±15g. By placing an order, you acknowledge and accept this normal weight tolerance. Important Compatibility Notice Before ordering, please confirm your front and rear axle spacing, axle diameter, 28H straight-pull spoke specification, HG / XD / MS freehub interface, cassette specification, brake rotor interface, frame compatibility and fork compatibility. Incorrect axle, freehub or wheel-building specifications may result in installation failure.

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