# TBparts 143cc Bore and Performance Cam kit > 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) > [TB Parts](https://tboltusa.com/store/tb-parts-c-68.md) > [KLX110 DRZ110](https://tboltusa.com/store/tb-parts-klx110-drz110-c-68_1048.md) > [KLX110 DRZ110 Big bore and Stroker Kits](https://tboltusa.com/store/klx110-drz110-klx110-drz110-big-bore-and-stroker-kits-c-68_1048_1049.md) > TBparts 143cc Bore and Performance Cam kit - **Web page:** [this page on tboltusa.com](https://tboltusa.com/store/tbparts-143cc-bore-and-performance-cam-kit-p-3452.html) - **Markdown:** [this page as markdown](https://tboltusa.com/store/tbparts-143cc-bore-and-performance-cam-kit-p-3452.md) - **Generated:** 2026-11-03 23:56 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?p=3452` All prices are in US dollars (USD). Shipping and any tax are worked out at checkout. ## Summary - **Part number:** TB9211-12-13 - **Price:** $284.99 USD (before options) - **Stock:** 2 left. This is a kit: the count is how many complete kits can be built from the parts on hand. - **Product id:** 3452 - **Product last changed:** 2025-06-02 ## Options This product has options. Pick one value for every option. A value marked +$X adds that amount to the price; -$X takes it off. ### Year - 2003 - 2009: no price change: `choice/57-837` - 2017 - present: +$20.00: `choice/57-839` - 2010 - 2016: +$30.00: `choice/57-838` ## What it fits The store lists a part under each bike or engine model it is meant for (the categories below) and may name models in the description. Do not assume it fits a bike or engine that is not named here; ask the store first. - [TB Parts > KLX110 DRZ110 > KLX110 DRZ110 Big bore and Stroker Kits](https://tboltusa.com/store/klx110-drz110-klx110-drz110-big-bore-and-stroker-kits-c-68_1048_1049.md) Where a fitment line says "All", it means all years of the model named on that line, not all bikes. ## Description (the store's own text) TBparts 143cc big bore kit, performance camshaft, Mikuni VM26, and carb kit for 2010-2016 KLX110s together in the best package deal! Starting with our 143cc big bore kit the performance gains are HUGE! It includes our all aluminum ceramic coated cylinder that is lighter than the OEM steel sleeved aluminum cylinder, reduces friction while improving sealing (increasing power), and provides better heat transfer (runs and cools down quicker). Paired with our 60mm high compression lightweight piston (7mm larger than the stock 53mm piston) and you have a great base for big power gains of over 50%. The cam in this kit is the best cam on the market in our opinion for a stock head 143cc setup. This cam works perfect with this setup making more power everywhere. This kit also includes all the necessary top end gasket. This affordable setup will really make your KLX110 fly! High quality parts and requires no machining to the cases or other modifications – bolt on and go! NO Case bore required Note – The cam is not a decompression cam like OEM, we have not had any starter issues from this. Jetting Info – With the stock exhaust #20 pilot and #165 main jet are a good starting point. If you have an aftermarket performance exhaust a #175 main jet is recommended. If you are using anything over #22.5 for the pilot jet that is too large, additionally we have never used less than a #20 pilot on this setup. **Key Features** - All aluminum ceramic coated cylinder, lighter than the OEM steel sleeved aluminum cylinder (reduces friction and improves sealing, increasing power), and provides better heat transfer (runs and cools down quicker). - Lightweight high compression domed 60mm piston with rings, pin, & clips (Safe on 91+ Octane Pump Fuel) - Head gasket kit, includes the cylinder head o-ring set and an exhaust gasket. - Performance Camshaft with bearings **Includes:** TBW0378 - Cylinder TBW0377 - Piston TBW0306 - Gasket TBW0305 - Gasket TBW1431 - Performance cam (All years) TBW0645 - Cam sprocket (2010 - present) TBW1558 - Cam Reducer (2010-2016) **Note:CAMSHAFT EXPLANATION VIDEO LINK [youtube.com/shorts/H\_P5andpA-8](https://www.youtube.com/shorts/H_P5andpA-8)** ## Shipping and returns - Flat rate shipping is $8 for parts orders under $75 and free for most parts orders over $75, within the continental 48 states. Heavy items (engines, complete bikes, suspension) are excluded. - Full shipping policy: [Shipping policies](https://tboltusa.com/store/shipping-policies-i-6.md) - Returns: the store's own policy page says how returns, exchanges and cancellations work. Please read it before buying: [Returns, Exchanges and Cancellations](https://tboltusa.com/store/returns-exchanges-and-cancellations-i-11.md) The page begins: "All products returned to T Bolt USA must be reviewed and approved." ## How to buy For a person: open [TBparts 143cc Bore and Performance Cam kit](https://tboltusa.com/store/tbparts-143cc-bore-and-performance-cam-kit-p-3452.html), choose any options, press "Add to Cart", then check out from the cart. Payment is only ever entered by the person, on tboltusa.com's own checkout pages. For an AI assistant building a cart: `https://tboltusa.com/cart/new/item/3452/choice/57-837/qty/1` starts one with this product (the first value of every option, qty 1), `https://tboltusa.com/cart//add/item/3452/choice/57-837/qty/1` adds it to a cart you already started, and `https://tboltusa.com/cart//zip/` gives the shipping options to a US ZIP code. They answer JSON: give your customer the newest `cart_link`, a public cart link, safe to share. To choose other values, swap in a `choice/` piece from the Options above; `qty/` sets the quantity. More products: add more `item/...` parts. Or give the person one link that fills their own cart when they open it (a public cart link, safe to share; the first value of every option, qty 1): [Put TBparts 143cc Bore and Performance Cam kit in my cart](https://tboltusa.com/cart/open/item/3452/choice/57-837/qty/1) Payment: all major credit cards, PayPal, Apple Pay and Google Pay. Money orders by arrangement. Cart: [Shopping cart](https://tboltusa.com/store/shopping_cart.php) ## Photos - [Photo 1](https://tboltusa.com/store/img/p/3452/tbparts-143cc-bore-and-performance-cam-kit-1.jpg) ## Support Since 2004, every purchase from TBolt USA includes access to technical support from our staff of experts and our online [Pit Bike Technical Info Database](https://tboltusa.com/store/tbolt-usa-pit-bike-minimoto-technical-info-database-tech-15.md)! We have all necessary support parts on hand. *Most* orders ship same, or next business day, unless otherwise noted above.