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The Aprilia RS4 125 (sold as the RS125 since 2016) [1] is a 125 cc class sportbike manufactured by Italian motorcycle firm Aprilia. The four-stroke RS4 125 replaces the extremely popular RS125 two-stroke race replica in Aprilia's lineup. The bike is based on the four-stroke version of the Derbi GPR125. [5]
The bike also has a vacuum fuel tap on the tank. Aprilia changed to radial four-piston brake calipers and added braided brake lines. In 2008, Aprilia changed the electronics from Nippon- Denso to a EFI Technology ECU and introduced the new Dell'Orto 28 mm VHST CD carburetor to meet the more stringent EURO3 emissions standards .
Since 2007, the bike is available in a new version, called RSA 125, for some riders. The RSA has many new details than the previous model, including improvements in the intake system and the engine. The old version, with some updates from the RSA, is still used as a customer bike and it is called the RS 125 LE .
Minibike race at Lelystad (NL) Ivar training at Wilrijk (B) Jerowe at the Sutton track in Ontario, Canada Pocketbikes are small, two wheeled recreational vehicles approximately one-quarter the size of a regular motorcycles, and are powered by two-stroke internal combustion engines of between 40 and 50 cc. Pocketbikes maintain the look of full-sized sport bikes and are known outside of North ...
Honda Nova Sonic RS The Honda Sonic is a 125 cc , later 150 cc underbone motorcycle designed for the Southeast Asian market by Honda . It is the part of the Nova series of sports oriented underbone motorbikes produced since the mid-1990s.
The Honda XRM was originally released with a 110 cc (6.7 cu in) engine, but was later changed to a 125 cc (7.6 cu in) engine taken from the Honda Wave. It is designed for both on- and off-road use. The XRM also spawned a non-off-road variant (later a separate model) called XRM 125 RS (where RS means Road Sport ) which was later re-launched into ...
The RS250 was designed by Aprilia to resemble their GP250 bike to celebrate their success in the championship. The Aprilia RS250 is powered by a modified Suzuki RGV250 (VJ22) engine which is prepared by Aprilia, changes include a revised ECU, Aprilia-designed expansion chambers, barrels and airbox.
The changes include some minor tweaks to the suspension like a different caster angle at the front (it is now 26°), and a shorter swingarm travel at the rear (it is now 110 mm down from 114 mm). The front half of the bike has reworked fairings and a new 5” full color TFT dash with smartphone connectivity.