• 420 Coolster Rear Sprocket - 60mm mounting diameter

    • 420 Coolster Rear Sprocket - 60mm mounting diameter

    $22.98
    (4 reviews) Write a Review
    SKU:
    420-60 238
    Weight:
    1.00 LBS
    Width:
    0.10 (in)
    Height:
    0.10 (in)
    Depth:
    0.10 (in)
    Shipping:
    Calculated at Checkout
    Adding to cart… category.add_cart_announcement

    Product Description

    Not made in China! Made from High Carbon Steel SAE 1045/49/SCM415. Fits 420 Chain. See picture for exact measurements. Check your current tooth count before ordering. Larger size sprockets in the rear give you more take off power with less top speed. Smaller rear sprockets give you more top end speed with a slower take off. Larger rear sprocket may require removal or modification of chain and sprocket guard. This is one of two rear sprockets found on some Coolster units. Use the mounting diameter to determine. Other size may be available, including 32 tooth and 41 tooth, email for details. We can also custom cut any size you need.

    Product Videos

    Custom Field

    Product Reviews

    Write a Review

    4 Reviews Hide Reviews Show Reviews

    • 5
      Perfect fit and well made

      Posted by Joe on 22nd Mar 2025

      Difficult to find sprocket fit perfectly and looks very heavy duty.

    • 5
      fits good on a coolster 3125c 125cc

      Posted by Samuel Bowers on 10th Apr 2018

      went up a tooth size from stock 41 to a 42....little more tork and not much difference in top end speed.

    • 5
      fits good on a coolster 3125c 125cc

      Posted by Samuel Bowers on 10th Apr 2018

      went up a tooth size from stock 31 to a 32....little more tork and not much difference in top end speed.

    • 5
      Great product and the best service

      Posted by Derek on 18th Mar 2018

      The product works great and specs were exact fit. Fast delivery. And as always the best customer service with the guys at whygostock.