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
Power	20 hp (15 kW) @ 8,500 rpm
Torque	1.85 kgf (4.1 lbf) @ 7,500 rpm
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) (dry); n/a (wet)
Fuel capacity	13 L (3.4 US gal)
Related	Yamaha RX-King 135 ; Yamaha Y125Z ;

Last updated March 07, 2026

The Yamaha RX-Z 135 was a two-stroke naked bike manufactured by Yamaha Motor Corporation. Debuting in April 1985, The RX-Z was sold in Malaysia, Singapore, and Thailand. Production of the bike ceased in July, 2011.

Overview

The first generation of the RX-Z, released in 1985, was equipped with a five-speed transmission with a front disc brake. The model shared the same platform and chassis as its predecessor, the RX-135. The engine was later upgraded with a six-speed transmission in 1990, together with the introduction of the Yamaha Computerized Lubrication System or YCLS, as well as a new front cowl and gauge cluster. The third generation RX-Z came out in 2004, featuring a restyle and a catalytic converter.^[2] Yamaha ended the bike’s production due to stricter emission laws, and discontinued sales in 2011.^[3]

In Malaysia, the Yamaha RX-Z was associated with Mat Rempit; individuals who participate in street racing.^[4] As a result, many Malay movies featuring them, such as Remp-It, use the RX-Z. Every year, there is a "RX-Z Members" event that is held at Litar Drag Gong Badak, Terengganu.^{[ citation needed ]}

References

1 2 3 4 Hong Leong Yamaha Motor Sdn. Bhd., Yamaha RX-Z 135cc, archived from the original on 2010-03-10, retrieved 2009-11-23
↑ "Yamaha RX-Z – Specs Motorcycles". specs.motorcycles. Retrieved 2026-03-04.
↑ Bahrom, Shahril (2025-08-19). "Biker Boost: RXZ Event Gets RM100,000 Kickstart From Madani Government | TRP". The Rakyat Post . Retrieved 2026-03-04.
↑ Bahanan, Lizawati; Idayu Mohd Yusop, Erma (April 1, 2009), "Squad 42 Battles 'Mat Rempit' Menace", Bernama , retrieved 2009-11-23

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[RXZ-1] 1 2 3 4 Hong Leong Yamaha Motor Sdn. Bhd., Yamaha RX-Z 135cc, archived from the original on 2010-03-10, retrieved 2009-11-23

[2] "Yamaha RX-Z – Specs Motorcycles". specs.motorcycles. Retrieved 2026-03-04.

[3] Bahrom, Shahril (2025-08-19). "Biker Boost: RXZ Event Gets RM100,000 Kickstart From Madani Government | TRP". The Rakyat Post . Retrieved 2026-03-04.

[Bernama2009-4] Bahanan, Lizawati; Idayu Mohd Yusop, Erma (April 1, 2009), "Squad 42 Battles 'Mat Rempit' Menace", Bernama , retrieved 2009-11-23

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