Yokomo B9-BTCBA Precision Resin Belt Tension Cam - Track Tuners Edition  [B9-BTCBA]

Yokomo B9-BTCBA Belt Tension Adjust Cam (Machine cut/1pcs)
Price:
CAD$10.90
Brand:
Yokomo
Model:
B9-BTCBA
GTIN:
0639342204755
Condition:
Brand New
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Fine Tune Belt Control with a Machine-Cut Resin Cam

The Yokomo B9-BTCBA Precision Resin Belt Tension Cam is a machine-cut resin component made to sharpen belt tension and improve drivetrain response. Compared with common moulded parts, this cam delivers tighter tolerances and steadier performance for hobbyists focused on lap consistency and routine setup work.

Accuracy from Machine Cutting

Machining produces a more consistent profile than conventional moulding, reducing slack in the belt run and giving crisper throttle and steering response. That reliability is especially useful for competitors who need repeatable handling across heats.

Compatibility Across Yokomo Chassis

This belt tension cam fits a broad selection of Yokomo frames, including the MRTC and MSR lines listed below. It is engineered to integrate cleanly with the belt routing and mounting points of these chassis, making it a practical upgrade or replacement part.

Suitable Models

  • MRTC-BD919
  • MRTC-BD919S
  • MRTC-BD10
  • MRTC-BD10A
  • MRTC-BD10FF
  • MRTC-BD10LC
  • MRTC-BD10LCA
  • MRTC-BD10LCR
  • MRTC-BD10LCRA
  • MRTC-BD11-1
  • MSR-BD11
  • MRTC-BD11US
  • MRTC-BD11A-1
  • MSR-010FE
  • MSR-010FEA
  • MSR-BD12
  • MSR-BD12A
  • MSR-BDFWD
  • RSR-010
  • MSR-010
  • MSR-010A
  • RSR-LFGT3RTR
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

How does a machine-cut cam change belt behaviour?

Machine-cut cams are shaped to tighter tolerances, which reduces side-to-side play and keeps belt tension steadier under load, improving throttle and steering feel.

Will this fit older MRTC-BD919 cars?

Yes, the B9-BTCBA is designed to be compatible with several older Yokomo chassis including the MRTC-BD919 family, so it works as an upgrade or replacement for those models.

Any tips for installing the cam?

Check belt alignment before final tightening, ensure mating surfaces are clean, and use the same mounting hardware as the original part for correct fitment.

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