Quote Originally Posted by Nuhaus
I'd love to know more about the mods ZMC has done to his Raptor. Wondering if he rebuilt the exhaust, air intake, and rejetted his carburetor. I believe the Raptor puts out about 20 HP stock compared to your 21. With the monoshock, your bike should be a lot lighter too.
I made my exhaust straight-through with baffles so that at idle the bike is moderately quiet, but when you gun it she screams a bit. I put on a clip-on air filter on the carb, but reading the plugs I found that I wasn't too lean, so I didn't try to re-jet.

Regal Raptor 234.4cc twin engine probably rates between 12KW (17hp) and 14KW (18.5hp). Whereas the YBR is 15.5KW (21hp). Also The Yamaha puts out 20.70Nm torque but the Raptor 17-19Nm. As well as this we think our raptors are about 150-160KG wet whereas the YBR is 138KG wet. The Raptor has cruiser tires copied from the Honda Rebel CMX250, whereas the Yamaha has 17 inch tires front and rear.

This means all things being equal the YBR WILL absolutely be quicker through all the power-bands, quicker around the corners, stop quicker, be more reliable and fuel efficient.

I don't begrudge this as at the time my bike was less than 40% the cost of his new. I will say that if you pay over 15,000RMB for a Regal Raptor 250 you need your head examining. Just save up longer and get a YBR250.