Spears Racing’s 520 lightweight rear sprockets are ultra light using engineered lightening holes as well as lowered front surface to achieve one of the strongest and lightest sprockets on the market today (depending on tooth count)
These Sprockets are made from the highest grade aerospace quality 7075-T651 high grade aluminum and it is Machined not Stamped,this way you need not to worry about it being ” True to the alignment” of your chain and front sprocket (no wobble).
This Sprocket is Designed and manufactured to the same detail as the Spears Racing 415 Championship winning rear sprockets.
*** Lightest Machined Rear 520 Sprocket on the Market Made in the USA ***
40t, 41t, 42t, 43t, 44t, 45t, 46t