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Barstool Racers
JACKSHAFT  INDEX
CMS SPROCKET
Go kart, Barstool racer and mini bike jackshaft kits and components are used to
raise or lower sprocket ratios, boosting speed and torque. Make your engine perform
at maximum  with these quality components
.
Click on a link below for the jackshaft component that you may need
BOLT ON JACKSHAFT SYSTEM
Not Available at this time
13T
13T
15T
64T
11"
4.27
27 MPH
13T
15T
13T
64T
11"
5.68
20 MPH
13T
13T
16T
64T
11"
4.00
29 MPH
13T
16T
13T
64T
11"
6.00
19 MPH
13T
13T
18T
64T
11"
3.56
33 MPH
13T
18T
13T
64T
11"
6.82
17 MPH
CLUTCH TEETH
PRIMARY
SECONDARY
REAR
SPROCKET
TIRE HIEGHT
RATIO
SPEED
JACKSHAFT RATIO'S FOR # 35 CHAIN
Example of final ratio without jackshaft system
13T clutch, 64T rear sprocket, 11" tall tire = 4.92 ratio = 24 mph
Above is some examples of gear selections used on most mini bikes
and barstool racers. Please note ratio's are based on a 6.5Hp engine
turning 3500 rpm and using # 35 chain. Speeds are approximate and
can very with terrain, pavement, size of rider etc.