TRX400EX TRX 400X XR 400R 400EX Stage 2 Two Hotcam Hot Cam Camshaft Timing Chain

TRX400EX TRX 400X XR 400R 400EX Stage 2 Two Hotcam Hot Cam Camshaft Timing Chain

Honda 400EX 400X XR400R Stage 2 Hotcam + BPRATV HD Chain kit delivers increased top-end power, stronger reliability, and direct bolt-on fitment.

Honda TRX400EX 400X XR400R Stage 2 Hotcams Camshaft + BPRATV HD Timing Chain Kit

📖 Product Description

Upgrade your Honda ATV’s top-end performance with the precision-engineered Stage 2 Hot Cams Camshaft paired with the BPRATV Heavy Duty Timing Chain Conversion. This package delivers increased power, improved throttle response, and long-term durability for aggressive riders and performance builds. Works flawlessly with stock valve springs for a reliable, bolt-in installation.

🔥 Key Features & Benefits

Built for riders seeking enhanced power without compromising reliability. Every component is brand-new and backed by manufacturer warranties for confidence on every ride.

  • Stage 2 Hotcams Camshaft for increased mid-to-top-end power
  • BPRATV Heavy Duty Timing Chain — thicker and stronger than OEM
  • Direct bolt-on design compatible with stock valve springs
  • All parts brand new in original packaging
  • 1-year manufacturer warranty included

✅ Compatibility

This performance kit fits all Honda 400cc sport ATV and off-road models listed below.

  • Honda TRX400EX (1999–2008)
  • Honda TRX400X (2009, 2012–2014)
  • Honda XR400R (1996–2004)
  • Compatible with stock or upgraded top ends
  • Ideal for trail, dune, and performance builds

❓ Frequently Asked Questions (FAQ)

  • Q: Does the Stage 2 camshaft work with stock valve springs?

    A: Yes. This Stage 2 Hotcams profile is designed to operate safely with factory springs.

  • Q: Is the BPRATV timing chain really thicker than OEM?

    A: Yes. The upgraded chain uses reinforced links to improve durability and stretch resistance.

  • Q: Does this kit require engine machining?

    A: No machining required. This is a direct bolt-in installation for all compatible models.

  • Q: Will this cam improve top-end performance?

    A: Yes. Stage 2 is specifically engineered for stronger mid-range and top-end power gains.

🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. Every component we offer is tested, proven, and selected to deliver maximum value for riders who demand reliability and power. Trust BPRATV to keep your Honda TRX400EX, 400X, or XR400R running at its best, every single time.


Boost your Honda’s performance today — order your Stage 2 cam + HD chain kit now!


BPRATV - The Best Parts. The Best Performance. The Best Price.

BRAPPPPPPPPPP!

© BPRATV LLC 1-year limited warranty from the manufacturer for material or workmanship defects.*

Due to the nature of high performance and racing applications, BPRATV LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not, under any circumstances, be liable for any specific, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue(s), cost of purchased or replacement goods, or claims of customers of the purpose, which may arise and/or shall result from sale, installation or use of these parts. Installation of these parts may void vehicle manufacturers warranty coverage and/or may cause the vehicle to be illegal in some locations.

This product is exempt from the emission standards and related requirements of 40 C.F.R. § 1051 as provided by 40 C.F.R. § 1051.620, and California law [e.g., vehicle code §§ 27156 and 38391]. This product is sold only for use in connection with EPA-certified, purpose-built, nonroad vehicles used solely for closed-course, nonroad competition/racing and not used for any recreational purpose or on public highways or rights of way maintained by and open to the public.

PROFESSIONAL INSTALLATION REQUIRED

DO YOU NEED THIS ITEM INSTALLED? WE HAVE YOU COVERED! CONTACT US FOR DETAILS.

REPAIR SHOPS AND DEALERS: CONTACT US TO SET UP AN ACCOUNT FOR WHOLESALE DISCOUNTS.

BPRATV: Over 20 Years of Excellence in Parts & Service
Upland, CA | Monday – Friday, 7 am – 4 pm PST
WE SHIP WORLDWIDE MONDAY THROUGH FRIDAY | ¡HABLAMOS ESPAÑOL!

Payments: Credit Card, PayPal, Venmo, Cash App, and In-Person (Cash/Check once cleared).


NOTICE REGARDING PHOTOS: Product photos used in our listings are for example only to show the high quality of our components. You will receive the correct quantity, size, and fitment of bearings, titanium fasteners, nuts, and bolts for the specific kit listed.

BEARING NOTICE: In some cases, you may receive SEALED bearings. If your application requires an OPEN bearing, the seals can easily be removed.

EMISSIONS & RACE USE ONLY: This product is exempt from emission standards and requirements of 40 C.F.R. § 1051 as provided by 40 C.F.R. § 1051.620, and California law [e.g., vehicle code §§ 27156 and 38391]. Sold ONLY for use with EPA-certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing. Installation may void vehicle manufacturers' warranty and/or may be illegal in some locations.

WARRANTY & LIABILITY: © BPRATV LLC 1-year limited warranty from manufacturer for material/workmanship defects.* Due to the nature of high performance and racing, components are sold without express/implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not be liable for specific, incidental, or consequential damages (loss of property, equipment, profits, or revenue) resulting from sale, installation, or use of these parts. This product is NOT DIY; we strongly recommend work be done by a qualified, experienced mechanic.

RETURNS: Returns accepted within 30 days for items 100% complete, brand new, and in original packaging. Items installed or prepped (lubricated/sealed) are ineligible. For warranty consideration, parts MUST be sent back for physical inspection. No exceptions. We do not warranty based on photos, emails, or third-party assessments.

SPECIALTY WARRANTIES: Cub Cylinders: Lifetime warranty for original owner via BPRATV/Millennium Technologies inspection; covers cylinder only. Titanium Fasteners: Failure during use results in replacement only. Neither warranty covers improper tuning, installation, maintenance, or misuse.

INTERCHANGEABLE PARTS: We may substitute parts of equal quality from different manufacturers to prevent backorder delays. Prices and listings subject to change without notice.

FEEDBACK: We work hard for your positive feedback. Please contact us before leaving feedback if you have any issues so we can assist you.