# TBparts - HD Suspension Kit with 350lb DNM Rear Shock for TRX90 > 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) > [Mini Quad ATC ATV Parts](https://tboltusa.com/store/mini-quad-atc-atv-parts-c-65.md) > [TRX 90](https://tboltusa.com/store/mini-quad-atc-atv-parts-trx-90-c-65_64.md) > TBparts - HD Suspension Kit with 350lb DNM Rear Shock for TRX90 - **Web page:** [this page on tboltusa.com](https://tboltusa.com/store/tbparts-hd-suspension-kit-with-350lb-dnm-rear-shock-for-trx90-p-12633.html) - **Markdown:** [this page as markdown](https://tboltusa.com/store/tbparts-hd-suspension-kit-with-350lb-dnm-rear-shock-for-trx90-p-12633.md) - **Generated:** 2026-11-13 10:35 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=12633` All prices are in US dollars (USD). Shipping and any tax are worked out at checkout. ## Summary - **Part number:** TBW9681 - **Price:** $249.99 USD - **Stock:** 1 left. This is a kit: the count is how many complete kits can be built from the parts on hand. - **Product id:** 12633 - **Product last changed:** 2026-10-28 ## 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. - [Mini Quad ATC ATV Parts > TRX 90](https://tboltusa.com/store/mini-quad-atc-atv-parts-trx-90-c-65_64.md) - [TB Parts > TRX90](https://tboltusa.com/store/tb-parts-trx90-c-68_808.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) Upgrade the suspension on your Honda TRX90 with this complete TBparts Heavy-Duty Suspension Kit, featuring HD front shocks and a DNM MK-AR 350lb rear shock. Designed for improved durability, control, and support, this kit is ideal for adult riders, aggressive trail riding, and riders who need more suspension performance than the soft OEM setup provides. Instead of upgrading one component at a time, this matched suspension package improves both the front and rear handling of your TRX90, delivering a more balanced ride, better stability, and increased confidence over rough terrain. **DNM MK-AR Rear Shock – 350lb Spring (245mm)** Improve your ride and handling with this high-quality DNM rear shock. DNM has been an integrated part of the suspension industry for more than 40 years, supplying OEM manufacturers and the aftermarket with high-performance suspension technology at an affordable price. This shock comes from their MK-AR series and is designed as a direct replacement for the Honda TRX90, providing stronger suspension support and adjustable performance. **Rear Shock Features and Specifications:** - 350lb heavy-duty spring rate - 245mm eye-to-eye length - 45mm stroke – same as OEM - Preload and rebound adjustments - Nitrogen-charged oil damping - Hard chromed 14mm steel damper shaft - High-quality surface finish - Direct bolt-on installation – no modifications required Simply install and ride for improved rear suspension control and durability. **TBparts Front Shock Set – HD Springs (230mm)** Upgrade the front suspension of your TRX90 with this TBparts Front Shock Set, featuring heavy-duty springs designed specifically for adult riders and more aggressive riding. These shocks replace the soft stock suspension and provide firmer damping, improved control, and better support over rough terrain. **Front Shock Features and Specifications:** - Heavy-duty springs – 35N/mm (ideal for adult riders) - 230mm length – direct replacement for OEM TRX90 shocks - Improved ride quality and suspension performance - Durable construction designed for off-road use - Great upgrade over soft factory suspension - Direct bolt-on fit – no modifications required Built to handle extra rider weight and aggressive riding, these shocks dramatically improve front-end stability and comfort. **Kit Includes:** - Front shocks - TBW2004 - Rear DNM shock - TBW1880 **Application:** - TRX90 - All years ## 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 - HD Suspension Kit with 350lb DNM Rear Shock for TRX90](https://tboltusa.com/store/tbparts-hd-suspension-kit-with-350lb-dnm-rear-shock-for-trx90-p-12633.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/12633/qty/1` starts one with this product (the first value of every option, qty 1), `https://tboltusa.com/cart//add/item/12633/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. 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 - HD Suspension Kit with 350lb DNM Rear Shock for TRX90 in my cart](https://tboltusa.com/cart/open/item/12633/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/12633/tbparts-hd-suspension-kit-with-350lb-dnm-rear-shock-for-trx90-1.9f110c62.jpg) - [Photo 2](https://tboltusa.com/store/img/p/12633/tbparts-hd-suspension-kit-with-350lb-dnm-rear-shock-for-trx90-2.e444e494.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.