Horstman Briggs X5 Junior Clutch 1 Disk, 5 Spring/5 Weight, 3/4" Shaft, Cryo Treated Parts, Less Rotating Weight, Only 2.850" Disk Size! $280.00

Restricted engines produce less power and therefore benefit significantly from low inertia drive line components. The X5 lowers rotational inertia by combining lightweight in a small package. Moving the rotating mass closer to the centerline of the crankshaft enables awesome mid range performance.

Qty: 01 02 03 04 05 06 07 08 09 10 15 20 25 30 Teeth: 11 #35 12 #35 13 #35 14 #35 15 #35 16 #35 17 #35 18 #35 19 #35 20 #35 21 #35 23 #35 15 #219 17 #219 19 #219 20 #219 21 #219 23 #219  

Horstman Briggs X5 Senior Clutch 2 Disk, 5 Spring/5 Weight, 3/4" Shaft, Cryo Treated Parts, Less Rotating Weight, Only 2.850" Disk Size! $295.00

Restricted engines produce less power and therefore benefit significantly from low inertia drive line components. The X5 lowers rotational inertia by combining lightweight in a small package. Moving the rotating mass closer to the centerline of the crankshaft enables awesome mid range performance.

Qty: 01 02 03 04 05 06 07 08 09 10 15 20 25 30 Teeth: 11 #3512 #35 13 #35 14 #35 15 #35 16 #35 17 #35 18 #35 19 #35 20 #35 21 #35 23 #35 15 #219 17 #219 19 #219 20 #219 21 #219 23 #219