TA05 centre bulk pulley gear 16T 17T 18T - TA05-21A by 3Racing  [TA05-21A]

TA05 centre pulley upgrade

This TA05-21A centre bulk pulley kit supplies interchangeable 16T, 17T and 18T pulley units made for the Tamiya TA05 family of 1/10 touring car chassis. It is an RC-scale replacement part intended to mount in the centre bulk area and to work with the stock drivetrain items used on TA05, TA-05IFS and TA05-R layouts.

Compatibility is confined to the TA05 variants listed and does not cover other chassis families. The kit lets tuners change centre pulley tooth count without altering the gearbox shell or motor pinion, so you can adjust acceleration versus top speed for track sessions or club meetings. Expect the tooth change to alter final drive response rather than require new hardware.

Install using normal centre-bulk access: remove the centre cover and associated drive pieces as needed, swap in the chosen 16T, 17T or 18T pulley, set gear mesh and alignment, and reassemble with the original fasteners. After refit, rotate the drivetrain by hand to confirm smooth engagement before applying power.

Use the pulley set as part of a tuning package alongside pinion, spur gear or ESC changes. This item is for model use only and not intended for any real vehicle application.