JT Sprockets 428 Steel Rear Sprocket (JTR1842)

Name: JT Sprockets 428 Steel Rear Sprocket (JTR1842)
Brand: JT Sprockets
SKU: 206723
Price: 21.99 USD
Availability: InStock

Part # JTR1842.42

Item #206723

Fits 29 motorcycles

Yamaha
- DT125 E · 1974
- DT125 E · 1977
- DT175 · 1974–1981
- YZ80 K · 1983
- YZ80 · 1981–1982
- YZ80 H/J · 1981–1982
- DT125 F · 1975–1976
- DT125 · 1974–1976
- DT125 · 1978–1980
- AG200
- AG200 · 1984–1994
- TW200
- TW200 · 1987–2025
- XT200
- XT200
- XT200 · 1982–1983
- TW225 E · 2002–2007
- MX175 · 1974–1975
- MX175 · 1977–1981
- XT125
- XT125 · 1982–1987
- XT125 · 1991–1993
- TW125 · 1999–2004
- TW200 T2 · 2026
- YZ80 G · 1980
- TY175
- TY125 · 1989
- XT250 T
- XT350 · 1985–2000

$21.99

Shipping calculated at checkout.

Low stock - 5 items left
Backordered, shipping soon

Flat $10 U.S. shipping, free over $100

Ships from one of three U.S. warehouses

Secure checkout

WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov

[{"id":48602205683866,"title":"42T","option1":"42T","option2":null,"option3":null,"sku":"206723","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"JT Sprockets 428 Steel Rear Sprocket (JTR1842) - 42T","public_title":"42T","options":["42T"],"price":2199,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"824225301533","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48602205716634,"title":"44T","option1":"44T","option2":null,"option3":null,"sku":"206724","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"JT Sprockets 428 Steel Rear Sprocket (JTR1842) - 44T","public_title":"44T","options":["44T"],"price":2199,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"824225301540","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48602205749402,"title":"45T","option1":"45T","option2":null,"option3":null,"sku":"206725","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"JT Sprockets 428 Steel Rear Sprocket (JTR1842) - 45T","public_title":"45T","options":["45T"],"price":2199,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"824225301557","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48602205782170,"title":"47T","option1":"47T","option2":null,"option3":null,"sku":"206726","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"JT Sprockets 428 Steel Rear Sprocket (JTR1842) - 47T","public_title":"47T","options":["47T"],"price":2299,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"824225301564","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48602205814938,"title":"50T","option1":"50T","option2":null,"option3":null,"sku":"JT184250","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"JT Sprockets 428 Steel Rear Sprocket (JTR1842) - 50T","public_title":"50T","options":["50T"],"price":2599,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"824225301588","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

JT Sprockets 428 Steel Rear Sprocket (JTR1842)

Product Details

A C49 high-carbon steel rear sprocket — JT's bread-and-butter replacement that swaps in like the OEM part for hundreds of street and sport fitments.

C49 high-carbon steel, induction-hardened on the tooth crowns for wear life that outlasts cheap stamped aluminum on the street.
CNC-machined to OEM bolt pattern and profile so it lines up to your hub without modification.
Available in zinc-black (zbk) and self-cleaning (SC) variants on select tooth counts.
Built by JT Sprockets — the world's largest sprocket manufacturer, with sprocket production for major OE bike brands.
Sized for 520 pitch across stock and shorter/taller gearing options.

Spec: type: rear_sprocket · teeth: 42 · part_number: JTR1842.42

Fitment

Fits 29 motorcycles across Yamaha — including Yamaha DT125 E 1974; Yamaha DT125 E 1977; Yamaha DT175 1974–1981; Yamaha YZ80 K 1983; Yamaha YZ80 1981–1982; Yamaha YZ80 H/J 1981–1982; Yamaha DT125 F 1975–1976; Yamaha DT125 1974–1976. Verify fit for your exact bike with the fitment checker at garamoto.com.

Specifications

Sprocket Position	Rear
Material	C49 high carbon steel
Surface Treatment	Heat-treated and beadblasted
Best For	Off-road / Trail, Street

Verified from Garamoto’s catalog & fitment data.