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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
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Description
BikeMaster Kawasaki Rear Steel Sprocket 420 51T - BlackMeticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster Rear Sprockets are machined from 1045 steel and coated with a beautiful black Cataphoresis finish. A perfect match for the BikeMaster line of chains. This Part Fits: Year Make Model Submodel 1995 2009,2011 2021 Kawasaki KX100 Base 2025 Kawasaki KX112 Base 1986 2000 Kawasaki KX80 Base 1987
Meticulously engineered using the highest quality materials and industry leading technology to provide the best replacement sprockets for your motorcycle. BikeMaster® Rear Sprockets are machined from 1045 steel and coated with a beautiful black Cataphoresis finish. A perfect match for the BikeMaster® line of chains.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1995-2009,2011-2021 | Kawasaki | KX100 | Base |
| 2025 | Kawasaki | KX112 | Base |
| 1986-2000 | Kawasaki | KX80 | Base |
| 1987-1994 | Kawasaki | KX80 Big Wheel | Base |
| 2001-2017,2025 | Kawasaki | KX85 | Base |
| 2003 | Suzuki | RM100 | Base |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Fuel and repair costs are rising…
Why not make your (overpriced) fuel work for you? If you appreciate your internal combustion engine, and want to help avoid costly repairs or maintenance to your fuel injector system, you can!
To be honest the quality of fuel is often questionable (I’m looking right at you, ethanol). Modern fuel injection systems are squeezed for every iota of fuel economy and performance. It makes sense to be a little proactive with the preventative maintenance, it’s just good sense.
Adding Jectron to your fuel is a smart, and economical measure that you can take, to keep your injection system running as designed.
It won’t damage your emissions components, it won’t harm your fuel systems more delicate parts (O-rings, plastic tubing, filters, etc.).
There are plenty of great options out there, such as Chevron’s Techron, and a handful of other reputable products. I used to be a very strong advocate of Techron (it’s still my backup choice). However, after witnessing Jectron solve a battery of problems on a variety of vehicles, I’m a convert.
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Reviewed in the United States on March 20, 2023
★★★★★ 5
Quick and Competent!
Fast service. Exactly as ordered.
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Reviewed in the United States on September 16, 2025
★★★★★ 5
Perfect fit
Color: 20pcs
Perfect replacement retainer clips for my car.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
use these every day
Color: 20pcs
fits better than OEM and better price
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Great in all respects
Color: 20pcs
Worked well for the job, good quality, and seem to be durable. Very easy to use and a good value for the money.
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Reviewed in the United States on December 12, 2025