Mountain Bike Crankset 104 BCD Hollow Integrated 170mm Arm With Narrow Wide Chainring Options 30T 32T 34T 36T 38T Lightweight About 550g Ready for Single Speed and a Legit MTB Upgrade

Upgrade your MTB with 104 BCD 170mm crankset
✔️ 550g CNC aluminum 30T-38T narrow wide options

This mountain bike crankset serves as the drivetrain center on MTBs and e-bikes for single speed riding.

✅ CNC aluminum alloy construction for strength and light weight
✅ 170mm crank arms with 104 BCD and 74mm hole spacing
✅ Narrow wide 4mm thick chainring in 30T to 38T sizes
✅ Fits 68-73mm threaded bottom brackets and 7-12 speed chains

💡 What is a mountain bike crankset used for? A mountain bike crankset connects the pedals to the chainring so power reaches the rear wheel. - Helps riders swap chainring sizes for better hill climbing or speed - Works with single speed setups on most mountain bikes and e-bikes - Supports easy install on 68-73mm bottom bracket shells - Delivers 550g total weight with hollow integrated arms

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