Each rate has a specific wire diameter. CNC wound with open pitch. Open pitch yields quicker recovery. Consistency in every lap. Lifetime Warranty. Available from 55lbs. to 185lbs. in 5lb. incrementsPit Stop USA offers Tanner Orange Hot Quarter Midget Spring - 95 lb. - 5" Tall 752-95 at low everyday prices. Be sure to check out all of our products from Tanner Racing Products including Tanner Racing Products Orange Hot Quarter Midget Springs.