The Honda TRX250R was a sport ATV manufactured by Honda between 1986 and 1989. It combined a lightweight frame and good handling with a liquid-cooled two-stroke engine and six-speed close-ratio transmission. Although only being manufactured for four years, the "250R", as it was known, was long a primary choice for ATV racers until the resurgence of factory involvement and usage of four-stroke engines in sport ATV's beginning in 2003 and 2004.
19-819: TRX may refer to: Transportation [ edit ] Honda TRX250R , a 1980s ATV Honda TRX450R , a 2000s and 2010s ATV Michelin TRX , a car tire Nissan Pintara TRX TraXion , a defunct Danish railway company Yamaha TRX850 , a sports motorcycle Ram 1500 TRX , a production model 4x4 performance truck from Stellantis Other [ edit ] Total prescriptions (TRx), see Pharmaceutical marketing TRX, an identifier for Thioredoxin TRX System , suspension training Tun Razak Exchange , Kuala Lumpur, Malaysia Tron (cryptocurrency) See also [ edit ] TRX1 (disambiguation) Topics referred to by
38-1928: Is an all-terrain vehicle , produced by Yamaha Motor Company . It was manufactured in Japan from 1987 through 2012. They were available in the United States from 1987 to 2006, in Canada until 2008 and in Australia from 1998 until 2012. The Banshee utilized a two-stroke twin-cylinder non-powervalve system version of Yamaha's RZ350. Engine Bore x Stroke: 64mm x 54mm Displacement: 347cc Compression Ratio: 6.5:1 Drive Train: RWD; Sealed O-Ring Chain Fuel Delivery: Dual Mikuni 26mm Ignition: CDI Starting System: Kick Transmission: 6-Speed Manual Fuel: Gasoline Transmission Transmission primary ratio: 66/23, 2.869 Transmission 1st gear ratio: 32/13, 2.461 Transmission 2nd gear ratio: 29/16, 1.812 Transmission 3rd gear ratio: 27/18, 1.500 Transmission 4th gear ratio: 25/20, 1.260 Transmission 5th gear ratio: 23/22, 1.045 Transmission 6th gear ratio: 21/24, 0.875 Transmission final ratio: 42/13, 3.230 Chassis Brakes / Front: Dual Hydraulic Disc Brakes / Rear: Hydraulic Disc Suspension / Front: Independent Double Wishbone, 9.1" w/ 5-way Preload Adjustment Suspension / Rear: Swingarm with Linkage, 8.7" w/ Rebound, Expansion and Threaded Preload Adjustment Tires / Front: AT18 x 7-10 Tires / Rear: AT20 x 10-9 Dimensions Dry Weight: 386 Lbs. Fuel Capacity: 3.2 Gallons Ground Clearance: 5.3" L x W x H: 73.0" x 43.3" x 42.5" Seat Height: 31.5" Wet Weight: 405 Lbs. Wheelbase: 50.4" Other Lighting: Dual 35W Halogen Headlights & 21/5W Brake light Despite not being sold new in
57-553: Is different from Wikidata All article disambiguation pages All disambiguation pages Honda TRX250R The TRX250R was introduced for the 1986 model year to answer Suzuki ’s LT250R , released the year prior. Honda borrowed many parts from its three-wheel ATC250R for the Fourtrax’s design, including the engine and rear suspension. Although the latter was mechanically similar, Honda detuned its engine through reduced compression and less aggressive porting, to ensure that
76-402: The 1989 model year, stronger replacement frames for racing were soon needed. The first aftermarket frame for the 250R was made by dirt track motorcycle chassis builder, C&J in 1991 for CT Racing.[3] This frame was a direct replacement for the original, maintaining stock suspension geometry. The first altered geometry frame was introduced by JP Racing a short while later. [3] This design brought
95-881: The Elusive Fourtrax", 3Wheeling , 7 (5): 34–35, 105, 0196-5549 7. Beckman, Phil (February 1987), "Cross Country Championship", 3Wheeling , 8 (2): 36–38, 0196-5549 8. "Honda's All New TRX250R", Dirtwheels , 25 (6): 190–192, 194, 198, 202, 206, June 2005, 1060-4804 9. "Reader's Survey: Honda Fourtrax TRX250R", 4-Wheel ATV Action , 16 (11): 42, November 1999, 1098-0423 10. "Legendary Shootout!", 4-Wheel ATV Action , 17 (9): 56–61, September 2000 11. "Ultimate High Performance Shootout", 4-Wheel ATV Action , 17 (1): 16–22, 24, 26, January 2000 12. "Specifications", Honda Service Manual; Honda Motor CO., LTD. Service Publications Office : 1–3, September 1988 13. world.honda.com , 2006 Yamaha Banshee The Banshee 350 (YFZ350)
114-567: The Pro-X cylinder, as well as others, also added an exhaust operated powervalve , a feature that was left off the 250R but used almost universally by the competition, as well as in Two-Stroke motocross bikes since the mid-eighties. Although great increases in displacement and power became possible, the TRX250R's transmission did have its limits, and gear strength became an issue. To allow for
133-432: The R!", Sand Sports , 12 (2): 64–67, 114, 10961941 3. Lanphier, Bill (May–June 2006), "Two Decades of 250Rs", Sand Sports , 12 (3): 62–65, 116, 118–119, 10961941 4. Beckman, Phil (November 1987), "Hello and Goodbye", ATVSports , 8 (11): 32–33, 0196-5549 5. Beckman, Phil (July 1986), "Too Close for Comfort", 3Wheeling , 7 (7): 36–39, 0196-5549 6. Kirsten, Dean (May 1986), "Tracking
152-425: The added weight of the quad would not adversely affect the reliability of the engine. The 1987 model year, now absent the three-wheelers because of a CPSC safety ban, saw the engine receive a five-millimeter longer connecting rod, accompanied by a piston with a wrist pin bore raised five millimeters. Additionally, the cylinder was changed to include a bridged intake. Most of the chassis of the 1987 Fourtrax remained
171-400: The following excerpt taken from world.honda.com: "To achieve the cleaner emissions and higher fuel economy targets it announced for motorcycles in 1999, Honda began as early as 1997 to take measures to discontinue the use of 2-stroke engines by the end of fiscal 2002. These simply structured 2-stroke engines had been adopted mainly in small motorcycles because of their superior output. Our goal
190-426: The front suspension mounts in one inch on each side, allowing the use of longer suspension arms in competition, which increased wheel travel and improved the ride qualities. By 2003, a myriad of aftermarket frames could be had from numerous manufacturers in both stock and altered geometry, made of steel and aluminum. Lone Star Racing produced a titanium frame, but AMA rules prevented its use in competition. Though Honda
209-520: The larger engines a joint venture between Baldwin Motorsports and Timken Bearing, in the 90's, produced a set of stronger aftermarket gears. These gears permitted engines over 330cc's to be reliably raced. The TRX250R is the only quad for which such a product was made. A driving reason Honda chose to use a larger displacement four stroke engine instead of the traditional two stroke as part of their re-involvement in competition ATV's can be learned from
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#1732779531693228-506: The overall wheelbase was slightly greater. This shifted the weight bias rearward, curing the Fourtrax’s “loop out” problem. Aesthetically, the Fourtrax's headlight was moved from the handlebars to a mount molded into the hood. This was also the only year to be available with red fenders. For 1989 the TRX250R received few changes. Most notable was the use of a needle bearing in the clutch pressure plate, for smoother action. This needle bearing
247-403: The same term [REDACTED] This disambiguation page lists articles associated with the title TRX . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=TRX&oldid=1212300319 " Category : Disambiguation pages Hidden categories: Short description
266-428: The same. The 1988 model year brought the most dramatic changes to the TRX250R. The compression ratio of the engine was raised to generate more power, bringing it nearly on par with Kawasaki ’s powervalved Tecate-4 . It was the chassis, however, that received the greatest attention, shedding 25 pounds over the previous year’s model. Additionally a shorter aluminum swing arm was added, but the frame lengthened such that
285-543: Was a machined steel piece campaigned by Gary Denton in 1989.[3] Wayne Hinson, who would later found worldwide clutch component manufacturer Hinson Racing, designed the clutch basket and later changed it to billet aluminum in 1991.[3] A regular trend that started on the Fourtrax that would not carry over to the four strokes was the use of aftermarket frames. Stock frames on most mass-produced quads are made of mild steel and, though suitable for recreational use, will quickly develop cracks when raced. Without new quads available after
304-438: Was a necessary upgrade for the 1988 TRX250R, as well [3]. The color was returned to white for its final year. While raced in mostly stock form in its earliest years, by the time production rules were initiated only about six of the TRX250R's components had to be purchased from Honda [3]. According to CT Racing's Allen Knowles, “More aftermarket parts have been made for the 250R than any other ATV.” [3] “Sixty Percent of my business
323-486: Was based on the R, compared to the next highest Banshee , at fifteen percent. With only the Banshee, I would have starved” said Wayne Hinson of Hinson Racing. [3] Initially, items that were subject to the most abuse from racing were the first to be remade. Originally made of die cast aluminum, the clutch basket was found to be weak when power was increased or subjected to race conditions. The first aftermarket clutch basket
342-512: Was initially concerned with reliability and detuned the original 250cc motor, with the release of the Pro-X (pro-cross) cylinder and head in 1994, the 250R's displacement could be increased well into the 300cc range by changing the cylinder alone. Additionally, this and other aftermarket cylinders offered advanced port layout for more tuning options. With modifications to the transmission cases, later aftermarket cylinders and crankshafts permitted engine displacements to reach 500cc's. The last version of
361-565: Was to replace them with more environment-friendly 4-stroke engine technology." Named “ATV of the Century” by “4-Wheel ATV Action” [9] 1. Ed Scott ; Randy Stephens, editor. (1990), Clymer Honda TRX250R/Fourtrax 250R & ATC250R 1985 - 1989 Service*Repair*Maintenance , Intertec Publishing, ISBN 0-89287-540-2 {{ citation }} : |author= has generic name ( help ) CS1 maint: multiple names: authors list ( link ) 2. Lanphier, Bill (March–April 2006), "Long Live
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