170mm Aluminum Single Crank Arm CNC 130mm BCD Lightweight for MTB Road Brompton
$32.12
• 170mm Crank Arm – Ideal length for pedaling balance and leverage.
• CNC Machined Aluminum – Lightweight yet durable construction.
• 130mm BCD Compatibility – Works with standard 130mm bolt circle chainrings.
• Universal Fit – Suitable for MTB, road and Brompton folding bikes.
• Square Taper Design – Fits square taper bottom bracket systems.
- Description
- Additional information
- Reviews (0)
Description
Product Overview
This 170mm aluminum single bike crank arm is precisely CNC machined and designed with a 130mm BCD interface for single chainring setups. The lightweight alloy construction provides excellent strength and durability while keeping weight low, making it a great upgrade or replacement part for mountain bikes, road bicycles and folding bikes like Brompton.
Technical Specifications
-
Crank Arm Length: 170mm
-
Bolt Circle Diameter: 130mm BCD
-
Material: CNC Machined Aluminum Alloy
-
Design: Single Crank Arm
-
Compatibility: MTB / Road / Folding / Brompton Bikes
-
Drivetrain Type: Single Speed
-
Bottom Bracket: Square Taper
-
Color: Black / Silver (may vary)
Package Includes
-
1 × Aluminum Single Crank Arm (170mm)
-
1 × Chainring Mounting Hardware Set (if included)
How To Use
-
Remove the existing crank arm from the square taper bottom bracket.
-
Slide the new 170mm crank arm onto the bottom bracket spindle.
-
Ensure the crank arm is aligned correctly.
-
Tighten the fixing bolt to recommended torque specs.
-
Attach your chosen 130mm BCD chainring and secure it.
-
Test smooth rotation before riding.
Additional information
| Weight | N/A |
|---|---|
| Color | Black, Sliver |
Related Products
-
Components, Drivetrain & Gears, Gear Cables
10 Pcs Stainless Steel Bicycle Shifter Cable 2 m Replacement Gear Cable
$2.730 - 0 reviewsThere is no AI review summary. -
Brake Rotors, Components
Aluminium Alloy Bike Disc Brake Hub Adapter for Mountain Bike
$7.10 - $8.760 - 0 reviewsThere is no AI review summary.Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Bottom_Brackets, Components, Drivetrain_Gears
BSA 68-73mm Aluminum Bicycle Bottom Bracket With Steel Bearings
$7.17 - $8.860 - 0 reviewsThere is no AI review summary.Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Brake Levers, Brakes, Components
Lightweight Aluminum Alloy Mountain Bike Disc Brake Lever with Bell
$16.290 - 0 reviewsThere is no AI review summary.Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Components, Saddles, Saddles & Posts
Retro Cowhide 3 Spring Durable Bike Saddle Black/Dark Brown Color
$20.06 - $26.060 - 0 reviewsThere is no AI review summary.Select options This product has multiple variants. The options may be chosen on the product pageQuick View
- Description
- Reviews (0)
Description
Product Overview
This 170mm aluminum single bike crank arm is precisely CNC machined and designed with a 130mm BCD interface for single chainring setups. The lightweight alloy construction provides excellent strength and durability while keeping weight low, making it a great upgrade or replacement part for mountain bikes, road bicycles and folding bikes like Brompton.
Technical Specifications
-
Crank Arm Length: 170mm
-
Bolt Circle Diameter: 130mm BCD
-
Material: CNC Machined Aluminum Alloy
-
Design: Single Crank Arm
-
Compatibility: MTB / Road / Folding / Brompton Bikes
-
Drivetrain Type: Single Speed
-
Bottom Bracket: Square Taper
-
Color: Black / Silver (may vary)
Package Includes
-
1 × Aluminum Single Crank Arm (170mm)
-
1 × Chainring Mounting Hardware Set (if included)
How To Use
-
Remove the existing crank arm from the square taper bottom bracket.
-
Slide the new 170mm crank arm onto the bottom bracket spindle.
-
Ensure the crank arm is aligned correctly.
-
Tighten the fixing bolt to recommended torque specs.
-
Attach your chosen 130mm BCD chainring and secure it.
-
Test smooth rotation before riding.
Related Products
-
Components, Drivetrain & Gears, Gear Cables
10 Pcs Stainless Steel Bicycle Shifter Cable 2 m Replacement Gear Cable
$2.730 - 0 reviewsThere is no AI review summary. -
Brake Rotors, Components
Bicycle Centerlock Disc Brake Rotor with Lockring 160mm/180mm/203mm
$10.28 - $16.210 - 0 reviewsThere is no AI review summary.Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Components, Saddles, Saddles & Posts
Classic Rivet Soft Bicycle Saddle Fit for Road Bike Fixed Gear Bike
$5.09 - $6.290 - 0 reviewsThere is no AI review summary.Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Components, Saddles, Saddles & Posts
Honeycomb Silicone Bicycle Saddle Cover Non-Slip for Gravel Road Bike Comfortable for Cycling
$10.41 - $11.210 - 0 reviewsThere is no AI review summary.Select options This product has multiple variants. The options may be chosen on the product pageQuick View -
Components, Saddles & Posts, Saddles
Kids Balance Bike Saddle 22.2mm Seatpost PU Padded Comfort Replacement
$11.180 - 0 reviewsThere is no AI review summary. -
Components, Grips, Parts & Stem
Non-Slip Soft with TPE Rubber Bicycle Bar Grip for Kid’s Bike Balance Bike
$2.310 - 0 reviewsThere is no AI review summary.Select options This product has multiple variants. The options may be chosen on the product pageQuick View













































