Rx Yamaha bike history

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Rx bike

Initial stage yamaha Japan was exporting all bikes from japan to india. The Yamaha RX 100 was a motorcycle made by Yamaha from 1985 to 1996 with technical collaboration with escorts india and distributed in India by Escorts. Later after 1990 escort started production here in india, with some parts importing from japan.

Yamaha Motor Company Manufacturer Yamaha Motor Company Parent company Escorts LimitedProduction1985–1996PredecessorRD350SuccessorRXG, RX z ,RX135ClassCommuter SportsEngine98.2 cc (5.99 cu in) air-cooled, reed valve two-stroke single Top speed110kmph+(fully conditioned)Power11.2hpTorque10.45Nm @7500rpmTransmissionfour-speed constant mesh, multi plate   clutch Suspension KY B telescopic fork, swing arm Brakes b Expanding Drum (both front and rear)Tires Wire spoked, F: 2.50×18, R: 2.75×18Wheelbase1,240 mm (49 in) Dimensions L: 2,040 mm (80 in)
W: 740 mm (29 in)
H: J1,060 mm (42 in)
Seat height765 mm (30.1 in)Fuel capacity10.5 L (2.3 imp gal; 2.8 US gal)Oil capacity1.3 L (0.29 imp gal; 0.34 US gal)Fuel consumption 25-45KM.

With its lightweight body and high power output, the resulting power to weight ratio of the bike made it the best 100 cc bike ever built for mass production, and as a result there is still a high demand for it many years after it ceased production.

The RX 100 was quickly adopted by racers who recognised its potential for drag racing. The Escort variants of the RX S had heavier gauge steel tubing and other changes specific to the Indian market, including slotted screws instead of the original Phillips. The appeal came largely from the high output of its 100 cc (6.1 cu in) engine. A large number of  options include large air filters, quicker throttle, disc brakes, an additional 5th gear, race pistons, racing CDI systems, upgraded tires and suspension damping. Various modifications such as expansion chambers, head porting, engine tuning, sprocket changes and wheel size changes became fairly common. The RX 100 production lasted from November 1985 to March 1996. The RX100 designation was originally used in certain markets for the Five- speed, Short- stroke 97cc Yamaha RS100DX produced from 1977. The tightening of emissions laws and regulations in India demanded lower emissions from these motorcycles, and as a result the RX 100 was replaced by the Yamaha RX G

The RX G had a primary and secondary reduction. This was an RS100 (itself a 1976 improvement upon the design of the original reed valved 96cc RS100 that was introduced to the United Kingdom in September, 1974, and to the USA in November, 1974)[1][2] with a front disc brake and a tachometer, and was replaced in 1983 with the square- stroke, 98cc RX S (with part numbers coded 31J),[3] a major update on the RS design (with substantial changes particularly to the cylinder, head, and induction, and the points ignition replaced by Yamaha Capacitor Discharge Ignition) which was to form the basis of the Escort distributed variants including the EY-100 Escort Yamaha 100. The only major change that the bike underwent was upgrading from a 6-volt electrical system to a 12-volt system in order to support a CDI (capacitor discharge ignition) system for improved ignition and timing. An easy differentiation between the Japanese and Indian market models was that the model produced in Japan had disc brakes, while the Indian market version had drum brakes front and rear.

Factory stock colours for the bikes were Peacock Blue, Cherry Red and Metallic Black. Names of older variants of the RS line were re-used for Escort variants of the RX S, including RX100 and RX Z (a designation first used for a version of the first-generation RS100 updated with Capacitor Discharge Ignition)

Following the poor sales of the Rajdoot 350, Yamaha needed to make a new product, and the recent success of Suzuki  AX 100 demonstrated the potential of small capacity motorbikes in India.

In India in November 1985, Yamaha released the RX 100 (a variant of the RX S not the original RX100 or RS100DX) to widespread acclaim. The bikes were knock-down kits, produced in Japan and assembled in India. It had the same lightened flywheel from the RX 100. Tuned RX 100's have completed a standing start quarter mile in about 14 seconds – a respectable figure, considering the much larger BMW-S1000RR 4-Cylinder 1,000 cc (61 cu in) bike can cover one quarter mile (0.4 km) in 10.2 seconds.

The final variant was a 4-speed RX 135 with a smaller catalytic converter silencer, classic rx100 like tank stripes and twin pod speedometer with white dials which was sold very briefly from 2003 to 2005.

Successor

Both were mechanically the same and the RX-135 received a lukewarm response. This model was the reply to the stricter emissions controls, which were to continue affecting Yamaha'  designs. The final variant was a four speed RX 135 with a small type catalytic converter, sporting a fuel gauge and a speedometer with white dials which was sold very briefly in 2003–2005. The Japanese manufacturers responded in late 1997 with the Yamaha RX-135 and the RX Z which had a tachometer and a sportier headlamp and body. The Yamaha RX 100 production run lasted from November 1985 to March 1996. The market also saw five speed versions of the RX-135s and RX Z. The model was followed by the 132 cc RX G. The RX G had an economy minded engine configuration with the ports tuned to increase fuel efficiency and decrease exhaust gas.

Models

Yamaha Rx 100 CKD KIT (1985-87)

Yamaha RX 100 (1987 last-1995)

Yamaha RX 100 12 V (1996)

Yamaha RX G (1996-1998)

Yamaha RX Z 4 Speed (1997-2000)

Yamaha RX 135 (YEI S) (1998-2000)

Yamaha RX 135 5 Speed (2000-2003)

Yamaha RX Z 5 speed (2000-2003)

Yamaha RX 135 4 Speed (Cat Con) (2001-2003)

Yamaha RX 135 4 Speed (Mini- Cat) (2003-2005