3Racing 3RAC-3PY/39 Aluminium Pulley Gear T39 - Track Ready [3RAC-3PY/39]

3RACING Aluminum Differential Pulley Gear T39 - 3RAC-3PY/39

Price:

NZD$15.14

Brand:

3Racing

Model:

3RAC-3PY/39

Condition:

Brand New

Quantity:

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Description
FAQ

Robust aluminium pulley for RC tuning

The 3Racing Aluminum Differential Pulley Gear T39, model 3RAC-3PY/39, is built to raise drivetrain reliability on club tracks and local bashing sessions. Its aluminium construction gives a solid feel while keeping weight reasonable for nimble handling.

Why enthusiasts choose this 3Racing pulley

Material: Durable aluminium chosen to resist wear and maintain form under load.
Tooth Count: T39 teeth designed for steady engagement and efficient torque transfer.
Compatibility: Suits a range of RC models that accept a T39 pulley arrangement.
Function: Improves drivetrain smoothness and helps reduce slop in gear engagement.

Can I swap this with a plastic pulley?

Yes, but verify mounting dimensions and shaft fit. The aluminium 3RAC-3PY/39 is stiffer and may require matching bolt tension to avoid fretting.

Will it change gear ratios?

No, tooth count is the same as other T39 pulleys so ratio remains unchanged; the main benefit is improved durability and repeatable engagement.

Is special installation hardware required?

Installation typically uses the same screws or set screws as the original pulley, but confirm thread type and torque settings to secure the 3RAC-3PY/39 properly.