哪些品牌生产最安静的山地自行车？

Trek Slash+ 是一款碳纤维车架、混合轮径（mullet）、高摆点（high-pivot）电助山地车，前后行程均为 170 mm，配备安静的 TQ HPR50 驱动系统和 580 Wh 内置电池。它为激进的耐力下坡（enduro）骑行和长距离下坡而设计，同时在续航和重量上比多数电助山地车更具优势。该车提供两种整车装配规格，侧重高端悬挂与传动组件。

The Project321 G3 rear hub uses the M-Pulse magnetic pawl drive with 288 points of engagement and a patent-pending 6-Lock rotor mounting that accepts six-bolt rotors or centerlock. It features anodized 7075 aluminum axles, dual double-row bearings, improved sealing, and is made in Canada, aimed at high-engagement, low-drag performance. The hub suits riders who want fast engagement and tunable hub sound.

Orbea Rise LT 是一款轻量化长行程电助山地车，后 150 mm、前 160 mm 行程，采用 OMR 碳纤维车架，动力来自 Shimano EP801 RS 电机并提供内置电池选项。它配备 29 in 车轮、Concentric Boost 悬挂平台与高端组件（Shimano 12-speed 传动与 XT 刹车），在下坡表现与爬坡效率之间取得平衡。LT 相较于 SL 提供更激进的几何与更长的行程，同时保持较低总体重量。

The Chris King R45 Rear Hub is a high-precision road/cyclocross hub featuring the proprietary RingDrive engagement (45 points) and serviceable sealed angular-contact bearings available in steel or ceramic. It's lightweight and narrow-bodied for aerodynamic wheel builds, made and assembled in the USA and offered in multiple axle, hole-count, and driveshell options. Suited for performance road and cyclocross wheel builds seeking durable, serviceable hubs.

The DT Swiss 350 is a durable, serviceable hub available with DT's Ratchet freehub (options include 18t, 24t, 36t, 54t or high-engagement DEG 72). It's built for MTB use with multiple axle and cassette interfaces and a focus on reliability and easy maintenance. Suited to riders who want robust performance and upgradeable engagement without a premium weight penalty.

The Industry Nine Hydra rear hub is a high-engagement MTB hub featuring a 690-point drive with a six-pawl leaf-spring actuation, sealed bearings, and multiple axle standards for Boost/QR compatibility. It's serviceable, made in the USA, offered in multiple colors, and designed for off-road use and quick power transfer.

The Onyx Classic Rear Hub uses a patented sprag clutch to provide instant engagement and near-silent operation, built for heavier use like e-bikes, bikepacking, tandems, and larger riders. It is a serviceable, build-to-order hub offered in multiple axle standards and spoke counts and prioritizes durability over minimal weight.

The Onyx Vesper Rear Hub is a lightweight, sprag-clutch rear hub designed for cross-country and trail use with a quiet, pawl-free engagement. It features multiple axle standards, J-bend flange, and XDR or Micro Spline driver options for modern drivetrains. Suited for riders wanting low-noise, durable hubs for custom wheel builds.

Orbea Rise LT 是一款轻量化长行程电助山地车，后 150 mm、前 160 mm 行程，采用 OMR 碳纤维车架，动力来自 Shimano EP801 RS 电机并提供内置电池选项。它配备 29 in 车轮、Concentric Boost 悬挂平台与高端组件（Shimano 12-speed 传动与 XT 刹车），在下坡表现与爬坡效率之间取得平衡。LT 相较于 SL 提供更激进的几何与更长的行程，同时保持较低总体重量。