Stone Pulley Wheel Gear Guide Roller Jockey 10t 11t 13t 15t Bearing Road MTB Bike Bearings Rear Derailleur for X4 Shimano M370

Stone Pulley Wheel Gear Guide Roller Jockey 10t 11t 13t 15t Bearing Road MTB Bike Bearings Rear Derailleur for X4 Shimano M370

Material: POM high strength resin, NSK bearing
Bearing: 689-2RS steel bearing
Tooth: 10T/11T/13/15T/17T

Weight: 9g/10g/12g/15g
Thickness: 8mm
Inner diameter: 6mm (compatible with 4/5mm)

Link to Buy:

Stone Pulley Wheel Gear Guide Roller Jockey 10t 11t 13t 15t Bearing Road MTB Bike Bearings Rear Derailleur for X4 Shimano M370

Stone Pulley Wheel ordinary tooth

Material: POM high strength resin, NSK bearing
Bearing: 689-2RS steel bearing
Tooth: 10T/11T/13/15T/17T

Weight: 9g/10g/12g/15g
Thickness: 8mm
Inner diameter: 6mm (compatible with 4/5mm)
Color: black wheel with red cover
Fit for: 9 10 11 12 speed
Package: 1* pulley wheel, 1*bolt adapter for 4mm to 6mm, 1*bolt adapter for 5mm to 6mm

Advice to customer want to modification:
1. More tooth means more likely to round, but only recommend add 1 tooth. For example, if you are using 11T, the max you can change is 12T. 13T is too big for you.

Tooth OD(mm) Weight(g) Fit for
10T 44mm 8g for part Campagnolo
11T 44.05mm 8g 95% Rear Derailleur
13T 52mm 10.5g long arm down part
15T 59.6mm 12g for sram down part

Polyoxymethylene (POM), also known as acetal, polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional stability.

POM is characterized by its high strength, hardness and rigidity to −40 °C.

Typical applications for POM include high-performance engineering components such as small gear wheels, eyeglass frames, ball bearings, ski bindings, fasteners, guns, knife handles, and lock systems. The material is widely used in the automotive and consumer electronics industry.

 

 

 

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