3 wheel bicycle electric motor Magnetic Point Power Sensor, Outdoor E Bike Replacement Parts Modified Kit with 12 Magnetic Point Power Senso for Electric Bike : Sports & Outdoors Smart slope detection provides instant uphill support AOTOS PikaBoost2 E-Bike Assist Kit,

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★★★★★ 4.0 (8 reviews)

US$ 24.58

★★★★★ 4.3 (29 reviews)

US$ 26.16

★★★★★ 4.0 (29 reviews)

US$ 25.46

★★★★★ 4.2 (11 reviews)

US$ 21.36

★★★★★ 4.2 (29 reviews)

US$ 29.51

★★★★★ 4.4 (10 reviews)

US$ 21.73

★★★★★ 4.2 (5 reviews)

US$ 22.30

★★★★★ 4.3 (17 reviews)

US$ 20.03

★★★★★ 4.9 (5 reviews)

US$ 29.30

★★★★★ 4.4 (12 reviews)

US$ 26.34

★★★★★ 4.1 (24 reviews)

US$ 29.52

★★★★★ 5.0 (22 reviews)

US$ 22.55

★★★★★ 4.9 (28 reviews)

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★★★★★ 5.0 (27 reviews)

US$ 28.29

★★★★★ 4.2 (12 reviews)

US$ 28.84

★★★★★ 5.0 (7 reviews)

US$ 25.61

★★★★★ 4.5 (5 reviews)

US$ 29.21

★★★★★ 4.1 (12 reviews)

US$ 21.61

★★★★★ 4.5 (6 reviews)

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★★★★★ 4.6 (20 reviews)