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B6.1 DIRECT SPUR GEAR MOUNT, for stock top shaft

B6.1 DIRECT SPUR GEAR MOUNT, for stock top shaft
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Product Description

Our ultralight spur gear mount for the B6.1 is here!

In the world of ultra competitive stock racing at indoor tracks, every grams counts and there is no better way to separate yourself from the pack than having a more efficient and lighter drive train.

Exotek spur mount assembly with 69t spur is only 8.5gr (stock slipper assembly and spur is 20gr) and you could lighten it further by using optional aluminum hardware.

Works with all 3 gear box types.

Uses a wider range of available spur gear sizes by Exotek and Kimbrough.

Allows for easy switching between a locked spur or slipper as track conditions warrant.

Uses the stock top shaft for increased idler gear durability compared to narrowed top shafts.

Compatible Spur Gears: 

  • Kimbrough
    • KIM301 66 tooth
    • KIM150 69 tooth
    • KIM143 72 tooth
    • KIM161 73 tooth
    • KIM162 74 tooth
  • Exotek
    • EXO1543 66 tooth 
    • EXO1544 69 tooth 
    • EXO1590 72 tooth
    • EXO1545 75 tooth 
    • EXO1546 78 tooth

For stock 17.5 non boost classes only.


$14.95 MSRP

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Product Reviews

  1. Even better than the previous version. 5 Star Review

    Posted by on 15th Oct 2018

    The lockout for the b6.1 is great. Lightweight and makes gives the car the extra punch it need when racing stock. Great job, Exotek.