⚙️ Square Taper Crank Arm Set – 170mm | 34T | 104 BCD | MCR Electric

Reliable drivetrain upgrade for MTB and e-bike builds.

A strong, lightweight crankset designed for square taper bottom brackets — ideal for replacement builds and hub motor conversions.

🔥 Product Information

✔ Designed for square taper bottom brackets
✔ 170 mm aluminium crank arms for efficient power transfer
✔ Right crank supplied with 34T CNC-machined chainring pre-installed
✔ 104 BCD spider – compatible with aftermarket chainrings
✔ Lightweight aluminium construction
✔ Black anodised finish
✔ Ideal for bikes & e-bike conversions
✔ Affordable and dependable upgrade

⚙ Specifications

Bottom bracket type: Square taper
Crank length: 170 mm
Chainring: 34T CNC-machined
BCD: 104 mm
Material: Aluminium
Finish: Black anodised

📦 What’s Included

• 1 × Left crank arm (170 mm)

• 1 × Right crank arm with 34T chainring installed

• 2 × Plastic crank bolt covers

🚚 Shipping

🚚 Same-day dispatch on all orders placed before the daily cut-off — fast UK delivery

⚡ MCR Electric — Built for dependable riding