100% Steel Made in the USA or Imported Teeth: 20T. Weight: 186g(6.56oz). Chain compatibility: 1/2" x1/8". Inner diameter: 34mm(±0.05mm). Thread pitch: 1.375mm. Cog Material: High tensile steel. The internal thread has high precision, smooth rotation and easy maintenance. How to install: Screw in Freewheel, easy to install, tighten firmly. Please consider the thickness matching yourself, as it may require some experience to achieve balance with the sprocket. How to disassemble: This product does not include a removal tool. The 20T/22T/24T Freewheel has no notches, only 2 small holes. Please use a screwdriver to align with the small holes and use a hammer to strike diagonally to remove it. Compatibility: Compatible with Sh*m*n* and Sr*m transmission system. Fit for standard threaded bicycle rear hub. Suitable for single-speed bikes, e-bikes or tricycles. Note: The product comes with lubrication oil, this is not dirt or damage! The images are for reference only. This is an industrial product, not a work of art. If you are concerned about perfection, please consider carefully before purchasing.

FEATURE:

Made of high-quality steel metal, corrosion-resistant, high-performance, and durable. 

The rotation is smooth without excessive noise.

the high-precision internal thread ensures a close connection with the bicycle hub and runs smoothly.

It provides fast riding speed and reduces the amount of work required. 

Small size, easy to install on the bicycle.

Affordable products replace high priced big brand products.

SPECIFICATION:

Chain compatibility: 1/2" ×1/8"

Material: Steel

Color: Brown / Black / Black&Silver

Size: 12T / 14T / 16T / 18T / 20T / 22T / 24T

PACKING LIST:

1 x Single speed freewheel

1 x Bubble wrap packaging