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HPI Baja Board
Baja Geeks UK
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HD Ball Drive - Reinforcement Ring Set
This is a pack of x4 Heavy Duty Reinforcement Rings designed specifically for use on our Ball Drive System.
If you run a more powerful engine than stock 26cc we highly recommend fitting these rings to extend the life of your system & maintain your warranty.
With today's larger engines now readily available and gaining popularity these rings greatly increase the strength of the cup walls when using high HP engines, keeping you running perfectly smooth with our Ball Drive System for longer.
A simple push fit, they've been machined to slide on and hug the cup perfectly.
These reinforced steel rings have a tapered leading edge to fit the v4 flare and at the back edge a lipped ridge ensuring its seated fully home every time, we have also now included the addition of a Boot Retaining ridge, so now your drive boots sit snug and securely in place.
Fit these to all 4 cups and your away.

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