Poll Result: What is your favourite type of engine(s)?

2-stroke 34 (61%)4-stroke 18 (32%)both, the more the merrier 2 (3%)none, i don’t like engines 1 (1%)Votes received: 55 It seems that many chose 2-stroke as their favourite engine. This maybe due to 2-stroke have simpler design, lighter weight and more power. Some also chose 4-stroke engine. Honda EX5, Yamaha Lagenda and Yamaha LC135 belong…

Arrow Racing Chamber + Muffler for 125Z/R

Why do you need to use racing chamber exhaust? The basic idea behind an expansion chamber is to use the momentum and pressure of the exhaust gases to create a pump that squeezes more air and fuel into the cylinder during the intake stroke. It does the same sort of thing that a turbocharger does,…