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4 Products3 CategoriesOEM / ODM Ready

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ZSM3185A3 Gear Auto-shifting Motor
3 Gear Auto-shifting Motor ZSM3185A
250W 3-speed auto-shift mid-drive, 1.85 overall ratio. 40%+ range improvement for hilly urban commutes.
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ZSM3185C3 Gear Auto-shifting Motor
3 Gear Auto-shifting Motor ZSM3185C
350/500/750W 3-speed high-power mid-drive, 60–80Nm. Built for cargo, fleet and heavy-duty urban riding.
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ZSM3185E3 Gear Auto-shifting Motor
3 Gear Auto-shifting Motor ZSM3185E
250/350/500W 3-speed new-platform, 2-stage reduction, only 3.1 kg. EU premium city bikes and folding e-bikes.
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ZSM3185K3 Gear Auto-shifting Motor
3 Gear Auto-shifting Motor ZSM3185K
250/350W 3-speed inner-rotor ultra-light mid-drive, only 2.7 kg, φ121mm. For shared bikes, commuters and front-drive e-bikes.
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