PBI rear sprockets are manufactured from aircraft quality 7075-T6 Aluminum which surpasses common steel sprockets in tensile, yield and shear strength. They are harder than steel and far lighter to save on unsprung weight. Most models are provided with lightening holes and are made from full thickness aluminum for maximum strength. Available in a full range of tooth sizes for ratio versatility.
CNC machined from solid high grade alloy steel and broached specially for maximum spline to shaft contact providing optimum load bearing. Heat treated and plated for long life and extended wear resistance.
PBI Countershaft (Front) Sprockets 
Manufactured from a steel alloy, approaching 200,000 PSI yield with a unique resistance to impact, load and wear.
#272 54-79 Sportster 530 chain 22T,23T,24T $29.58 MSRP 23.95 cost
#273 XL 78-83 530 chain 20T,21T,23T $ 29.58 MSRP 23.95 cost
#276 XL 84-90 530 chain 17T,18T 18.90 MSRP 15.12 cost
PBI Rear Sprockets
#2072 49Tooth Fits XL 78-85,73-79 FL,FLH,FLT,FX,FXE Most years 73-85 Alum finish $60.71 MSRP 48.95 cost
#2072-58 tooth, Gold Finish, fits as above alum sprocket $76.66 MSRP 59.95 cost
