# Sprockets & Chains

> This is a plain-text (markdown) copy of a page on tboltusa.com, made for AI assistants. People see the same page at the HTML link below.

- **Breadcrumbs:** [Home](https://tboltusa.com/store/index.md) > [Honda Vintage Mini Bike Parts](https://tboltusa.com/store/honda-vintage-mini-bike-parts-c-101.md) > [Z50 K3-78](https://tboltusa.com/store/honda-vintage-mini-bike-parts-z50-k3-78-c-101_215.md) > Sprockets & Chains
- **Web page:** [this page on tboltusa.com](https://tboltusa.com/store/z50-k3-78-sprockets-chains-c-101_215_589.html)
- **Markdown:** [this page as markdown](https://tboltusa.com/store/z50-k3-78-sprockets-chains-c-101_215_589.md)
- **Generated:** 2026-11-03 19:58 EST
- **Site guide for AI assistants:** [llms.txt](https://tboltusa.com/llms.txt)
- **Your list:** To list everything you have looked at in one page, with current prices and stock, add ids to this address (comma separated, up to 20 of each): `https://tboltusa.com/store/seen.md?c=589`

All prices are in US dollars (USD). Shipping and any tax are worked out at checkout.

Products are filed in categories. Most top categories split by bike or engine model; a product can be listed in more than one category.

## Next to this category

- [Bars & Controls](https://tboltusa.com/store/z50-k3-78-bars-controls-c-101_215_571.md)
- [Brake Pads & Pedals](https://tboltusa.com/store/z50-k3-78-brake-pads-pedals-c-101_215_573.md)
- [Carbs & Kits](https://tboltusa.com/store/z50-k3-78-carbs-kits-c-101_215_577.md)
- [Electrical](https://tboltusa.com/store/z50-k3-78-electrical-c-101_215_579.md)
- [Engine Covers & Dress Up Parts](https://tboltusa.com/store/z50-k3-78-engine-covers-dress-up-parts-c-101_215_575.md)
- [Engine Kits and parts](https://tboltusa.com/store/z50-k3-78-engine-kits-and-parts-c-101_215_581.md)
- [Exhaust](https://tboltusa.com/store/z50-k3-78-exhaust-c-101_215_583.md)
- [Pegs & Mounts](https://tboltusa.com/store/z50-k3-78-pegs-mounts-c-101_215_584.md)
- [Seats & Tanks](https://tboltusa.com/store/z50-k3-78-seats-tanks-c-101_215_586.md)
- [Suspension](https://tboltusa.com/store/z50-k3-78-suspension-c-101_215_591.md)
- [Swingarm & Frame](https://tboltusa.com/store/z50-k3-78-swingarm-frame-c-101_215_593.md)
- [Wheels & Tires](https://tboltusa.com/store/z50-k3-78-wheels-tires-c-101_215_595.md)

## Products

Showing 1 to 20 of 20 products (page 1 of 1).

- [TRC - Chain & Sprockets Set for Z50](https://tboltusa.com/store/trc-chain-sprockets-set-for-z50-p-12270.md): part number `TRC-1575`; $49.99 USD; 2 left
- [12T Front Sprocket for CRF110, XR70, CT70, Z50](https://tboltusa.com/store/12t-front-sprocket-for-crf110-xr70-ct70-z50-p-10990.md): part numbers `TBW1271` / `W-55-25212`; $6.53 USD; 2 left
- [13T Front Sprocket 420 Pit Bikes](https://tboltusa.com/store/13t-front-sprocket-420-pit-bikes-p-1138.md): part number `TRC-1138`; $17.99 USD; 8 left
- [14T Front Sprocket 420 Pit Bikes](https://tboltusa.com/store/14t-front-sprocket-420-pit-bikes-p-143.md): part number `TRC-0143`; $17.99 USD; 6 left
- [15T Front Sprocket 420 Pit Bikes](https://tboltusa.com/store/15t-front-sprocket-420-pit-bikes-p-39.md): part number `TRC-0039`; $17.99 USD; 4 left
- [16T Front Sprocket 420 Pit Bikes](https://tboltusa.com/store/16t-front-sprocket-420-pit-bikes-p-40.md): part number `TRC-0040`; $17.99 USD; in stock
- [17T Front Sprocket 420 Pit Bikes](https://tboltusa.com/store/17t-front-sprocket-420-pit-bikes-p-123.md): part number `TRC-0123`; $17.99 USD; 8 left
- [Chain and Axle Adjusters for Z50 XR50 CRF50 CT70 KLX110 DRZ110 CRF110](https://tboltusa.com/store/chain-and-axle-adjusters-for-z50-xr50-crf50-ct70-klx110-drz110-crf110-p-1345.md): part number `TRC-1345`; $14.99 USD; in stock
- [FIREPOWER Gold Chain 420 x 120 Length](https://tboltusa.com/store/firepower-gold-chain-420-120-length-p-792.md): part number `W-692-1120G`; $41.95 USD; 8 left
- [H-D Steel Rear Sprocket for Z50 - 35T](https://tboltusa.com/store/steel-rear-sprocket-for-z50-35t-p-11578.md): part number `TBW1298`; $19.95 USD; 2 left
- [JT Honda CRF110, XR70, CT70, Z50 Front Sprocket 13 Tooth](https://tboltusa.com/store/jt-honda-crf110-xr70-ct70-z50-front-sprocket-13-tooth-p-2306.md): part number `W-55-25313`; $14.95 USD; 2 left
- [JT Honda CRF110, XR70, CT70, Z50 Front Sprocket 14 Tooth](https://tboltusa.com/store/jt-honda-crf110-xr70-ct70-z50-front-sprocket-14-tooth-p-5474.md): part numbers `W-55-25314` / `JTF253-14`; $14.95 USD; out of stock
- [JT Honda CRF110, XR70, CT70, Z50 Front Sprocket 15 Tooth](https://tboltusa.com/store/jt-honda-crf110-xr70-ct70-z50-front-sprocket-15-tooth-p-9796.md): part number `W-55-25315`; $14.95 USD; 2 left
- [JT Honda CRF110, XR70, CT70, Z50 Front Sprocket 16 Tooth](https://tboltusa.com/store/jt-honda-crf110-xr70-ct70-z50-front-sprocket-16-tooth-p-9887.md): part number `W-55-25316`; $14.95 USD; 2 left
- [JT Honda CRF110, XR70, CT70, Z50 Front Sprocket 17 Tooth](https://tboltusa.com/store/jt-honda-crf110-xr70-ct70-z50-front-sprocket-17-tooth-p-9888.md): part number `W-55-25317`; $14.95 USD; 1 left
- [Magnum - Gold Chain 420 x 120 Length](https://tboltusa.com/store/magnum-gold-chain-420-120-length-p-11649.md): part number `MG-001`; $24.95 USD; 7 left
- [TBParts - Chain Guard for Z50 K4-78](https://tboltusa.com/store/tbparts-chain-guard-for-z50-k4-78-p-10751.md): part number `TBW1197`; $31.99 USD; 1 left
- [TBParts - Chrome Chain Guard for Z50 K3](https://tboltusa.com/store/tbparts-chrome-chain-guard-for-z50-k3-p-11094.md): part number `TBW1196`; $31.99 USD; 1 left
- [TBParts - Front Sprocket plate with bolts for Z50 K0-81 Z50R 78-81](https://tboltusa.com/store/tbparts-front-sprocket-plate-with-bolts-for-z50-k0-81-z50r-78-81-p-11448.md): part number `TBW1501`; $6.99 USD; 3 left
- [Z50 REAR Sprocket 37T](https://tboltusa.com/store/z50-rear-sprocket-37t-p-5221.md): part number `W-55-25537`; $19.95 USD; 2 left

Stock: "in stock" = 9 or more, a number = that many left, "out of stock" = cannot be ordered now. "options" = choose options on the product page before it can go in the cart. Product links go to the markdown copy; for the web page change the ending .md to .html.

## Navigate

- Up one level: [Z50 K3-78](https://tboltusa.com/store/honda-vintage-mini-bike-parts-z50-k3-78-c-101_215.md)
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