Yamaha RX-Z

Yamaha RX-Z

2007 RX-Z Catalyzer modified for highway racing in Malaysia.
Manufacturer	Yamaha Motor Company
Parent company	Yamaha Corporation
Production	April 1985 – July 2011
Class	Naked bike
Engine	133 cc (8.1 cu in) two-stroke,
Bore / stroke	56.0 mm × 54.0 mm (2.20 in × 2.13 in)
Compression ratio	7.0:1 [1]
Power	20 hp (15 kW) @ 8,500 rpm [1]
Torque	1.85 kgf (4.1 lbf) @ 7,500 rpm [1]
Transmission	5-speed (first generation 1985 to 1987) / 6-speed (still the 1st generation from 1988 to 1989 to the 2nd generation from 1990 until the last generation from 2004 to 2011. ) manual transmission
Suspension	Front: Telescopic fork Rear: Dual shocks swingarm
Brakes	Front: Disc Rear: Drum
Tires	80/90-18 45H front, 90/90-18 51H rear
Wheelbase	1,300 mm (51 in)
Dimensions	L: 1,990 mm (78 in) W: 725 mm (28.5 in) H: 1,160 mm (46 in)
Seat height	770 mm (30 in)
Weight	106 kg (234 lb) [1]  (dry) n/a (wet)
Fuel capacity	13 L (3.4 US gal)
Related	Yamaha RX-King 135 Yamaha Y125Z

The Yamaha RX-Z 135 is a two-stroke naked bike manufactured by Yamaha Motor Corporation. Debuting in April 1985, the RX-Z was very popular in Malaysia, Singapore, and Thailand and was sold until production was ended in 2011.

In 2004, the RX-Z had a restyle and a catalytic converter was installed.

Overview

The first generation of the RX-Z (1985) was originally equipped with a five-speed transmission with solid front disc brake. The model shared the same platform and chassis as its predecessor the RX-135. The RX-Z became very popular among young motorcyclists in Singapore and Malaysia. A few years later in 1990, the engine was upgraded with a six-speed transmission, together with the introduction of the Yamaha Computerized Lubrication System or YCLS, as well as a new front cowl and new a gauge cluster.

The third generation RX-Z came out in 2004 when the model was updated, with rear lights borrowed from the Yamaha Y125Z and with a catalytic converter due to Euro 3 regulations. Production ended in 2011.

In Malaysia, the Yamaha RX-Z was often associated with Mat Rempits; individuals (often young men) who participate in street racing and hooliganism. ^[2] As a result, many Malay movies including Remp-It use the RX-Z in their movies.

Present day and the RX-Z is very popular now in Malaysia, Singapore and Indonesia. And every year there is the "RX-Z Members" event that is held every year at Litar Drag Gong Badak, Terengganu. Prices now are skyrocketing in Malaysia as recently as 2025, one hereby sold in Kelantan by Malaysian entrepreneur Farhana Zahra for one million ringgit because it had rare and all original NOS Yamaha Genuine parts. ^[3]

References

1. Hong Leong Yamaha Motor Sdn. Bhd., Yamaha RX-Z 135cc, archived from the original on 2010-03-10, retrieved 2009-11-23
2. Bahanan, Lizawati; Idayu Mohd Yusop, Erma (April 1, 2009), "Squad 42 Battles 'Mat Rempit' Menace", Bernama , retrieved 2009-11-23
3. "'RX-Z Dijual Untuk RM1,000,000 Kelantan'".