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⚡ Shift into high gear with JT Sprockets — where precision meets power!
The JT Sprockets JTR1842.42 is a 42-tooth rear sprocket made in the USA from heat-treated C49 high carbon steel. Designed for durability and precision, it undergoes 10 quality control checks and hand finishing to ensure top-tier performance. Ideal for riders seeking to upgrade their bike’s speed and reliability, this sprocket enables smoother cruising at higher speeds while maintaining long-lasting strength.
| ASIN | B001AVONO2 |
| Best Sellers Rank | #1,442,333 in Automotive ( See Top 100 in Automotive ) #2,090 in Powersports Sprockets |
| Brand | JT |
| Customer Reviews | 4.6 4.6 out of 5 stars (11) |
| Date First Available | December 18, 2009 |
| Exterior | Painted |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | JTR1842.42 |
| Manufacturer | JT Sprockets |
| Manufacturer Part Number | 55-184242 |
| Model | JTR1842.42 |
| Product Dimensions | 8.7 x 7.7 x 5 inches |
H**A
Made my TW200 much more rideable
With the stock 50T sprocket, I was already in top gear at 25 MPH and was uncomfortable go over 45 MPH... With the 42T sprocket I can now comfortably cruise at 65-70 MPH all day. However you will need washers to use the stock bolts since this sprocket is thicker than the stock one.
D**Y
my sprocket review
I love my new JT sprocket- it makes me go fast! Wheeeeee!
K**A
Wrong size search results
Material seems durable but it was 420, I ordered 428
A**I
Bolted right on, except I had to add 3 ...
Bolted right on, except I had to add 3 washers to each stud because the inner portion of the sprocket with bolt holes was at least an eighth-inch thinner than the 48- tooth sprocket I was replacing.
R**N
Five Stars
Great service, product arrived as advertised and on schedule. Very satisfied customer.
Trustpilot
1 week ago
2 months ago