Rear Drive Belt for Stock MX4, MR4BC
Rear Drive Belt for Stock MX4, MR4BC & MX4 Prototype – The Right Fit, No Guesswork
Looking to keep your classic Yokomo MX4, MR4BC, or that sweet MX4 Prototype running smooth? You’ll need the rear drive belt that actually fits — no more messing with wrong sizes or sketchy alternatives.
✅ What You Want:
Part 132‑3M‑6, 44-tooth
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Perfect Drop-in Fit: For stock MX4, MR4BC, and the MX4 Prototype. Exactly what Yokomo intended.
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Built to Last: Neoprene with glass-fiber reinforcement — tough enough for serious track time.
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OEM Specs: 132mm length, 3mm pitch, 6mm wide — a 44-tooth beauty that won’t let you down.
🔧 Why It Matters:
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🔹 No Slips, No Stretch – Reliable power delivery right to your wheels.
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🔹 Race-Ready Replacement – Forget downtime. Pop this in and hit the track.
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🔹 Period-Correct Part – Keeps your vintage Yokomo proper.
🔍 Pro Tip:
While you're at it, check your pulleys and tensioners — worn parts kill belts faster than you think.
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