Quads

• Honda TRX250R
• Honda TRX400EX
• Honda TRX450R
• Kawasaki KFX450R
• Suzuki LTZ400
• Suzuki LTR450
• Yamaha YFZ450
• Yamaha Raptor 660
• Yamaha Raptor 700
• Yamaha Blaster
• Yamaha Banshee
• KTM 450/525XC
• Puma 430 Kit
• Suzuki LTZ50
  
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Services

• 2-Stroke Porting
• 4-Stroke Head Services
• Pipes & Exhaust Systems
  
• Custom Pipe Building
• Dyno Tuning
• Complete Engine Building
• Bore & Hone Services
• Carb & Throttle Boring

Honda TRX250R

Arlan has built his reputation as a world renowned engine builder with the TRX250R. These kits are famous for putting out big horesepower while still having the low-end grunt that is critical for acceleration and ridability. With the help of ATV Greats such as Gary Denton, Barry Hawk, and Bill Ballance, Arlan has developed engine packages for all types of racing and riding. With 15 major National Championships as well as 3 All-Japan championships claimed on Arlan Lehman built 250R engines, you can be sure that you are getting a World Class Honda engine. Check out the details below on these power products for the Honda TRX250R.

 

Pictured above is Matt Smiley our cross country rider running our 300 kit.

 

Paul Sindorf won the Plus 40 Champioship in the Yamaha QaudX series using LED's TRX 350R PV kit. The picture above is Paul on his ATV.

 

Performance Products

Carburetors: For larger displacement engine kits, we suggest running Keihin 38mm Air Striker or 39mm PWK Carbs for optimum performance.

Exhaust System: Standard Bore LRD Exhaust: This adjustable pipe is designed for modified performance engines. Utilizing a slip-fit adjustable design, riders can fine tune the powerband either for more bottom end, midrange, or top-end. Use the Big-Bore LRD Exhaust for engines over 310cc.

Reeds : Utilizing the Boyesen RAD 02B reed cage maximizes surface area and matches to the carburetors above for maximum performance.

Replacement Pistons: We have pistons for OEM cylinders, OEM Big-Bores, NIKS Cylinders, and more...Call us today and let us know what you need.

Replacement Crankshafts: HotRods stock stroke or +4mm stroker cranks come complete with HotRods connecting rods, top-end bearings, and crankshaft webs.

 

Honda TRX300R

The LED TRX 250R 300 kit is a 2011 cylinder kit for a 1980’s Quad. You definitely can teach old dog new tricks with this leading edge technology engine kit! Our cylinder casting features triple exhaust ports and radically improved transfer ports. The cylinder features a cast in integral reed spacer and the cylinder head allows for interchangeable combustion chambers.

We port the cylinder to match your riding style and the type of riding that you do. This cylinder has the same great acceleration and strong midrange power both LRD and LED Performance were famous for.

Don’t be confused by claims of other engine builders offering 310 kits. Our kit and all the other so called 310 kits use a 72 mm bore and are actually closer to 295 cc.

To help illustrate the performance gains of the LED 300 Kit We have provided a Dyno chart that compares our 300 kit ported for MX of XC to our ported stock cylinder Grand national kit. This 250 GNC kit is a replica of the Engines used by both Bill Balance and Jeremiah Jones at the beginning of the 2002   season. This gives a clear illustration of how the 300 kit is improved over the best ported stock 250 R cylinders ever done.

LED 350 Powervalve: We build the 350PV cylinder to the same standards as we do the 250cc kits. This is the ultimate kit for big horsepower and gobs of torque. The low end is improved by the powervalve and makes a smooth transition into the power band when rolling on the throttle. Available with bore sizes from 77.50mm to 79.00mm. Kit includes PV Cylinder, PV Assembly, Piston, Wrist Pin, WP Bearing, top-end gaskets, Top-end o-ring kit, Spacer plate, Cylinder dowels, and Long Base studs.

LED 350 Powervalve