HammerHead Performance 20%, 800RPM Torque Spring, Black for 250cc / 300cc - FX1‐250‐K

HammerHead Performance 20% BLACK Clutch Srping for 250cc and 300cc clutches. 

OD = 68mm

For most torque (clutch) springs after they are in use they lose force, strength and tension.  Most springs lose around 12% recession and sometimes more after 1000 kilometers (nearly 625 miles) of use.   

With the 20% torque spring, after 1000 kilometers our torque spring only has a 1.5 - 2% recession, which is extremely unique and quite amazing!  The reason the recession on the HammerHead Performance spring is so low is because these springs are made of high quality material AND before they are sold they are recessed in the factory.  These factors are why users cannot feel any loss of power as the loss was already made at the factory during production.     

From the take-off position the HammerHead Performance spring works like +800rpm torque spring, but during re-acceleration it works like a +1200rpm torque spring.