COMPLETE JACKSHAFT SYSTEM
NEW  BILLET  BOLT ON MINI BIKE - GO KART JACKSHAFT SYSTEM
FOR
HONDA,  HONDA CLONE, BRIGGS AND STRATTON, TECUMSEH, ENGINES
Barstool Racers
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support
(909) 554-0054
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CMS JACKSHAFT SYSTEM
COMPLETE JACKSHAFT SYSTEM WITH 12T 3/4" SHAFT CLUTCH
$149.00
JACKSHAFT SYSTEM NO CLUTCH 5/8" SHAFT
$109.00
This jack shaft system comes with billet backing
plate, 5/8" jack axle, standard gear (13/15)   
3/4" clutch spacer, mounting bolts, chain, .
This system comes with billet backing
plate,5/8" jack axle, standard (13/15) tooth
gears,  3/4" clutch spacer, mounting bolts,
chain,13T #35 chain 3/4" shaft clutch
With this jack shaft system you can add awesome power and performance to mini
bikes,barstool racers, go karts, powered wagons that use  3hp to 6.5 HP gas engines with a
3/4" shaft. Change gear ratios quickly for more speed or for lower speed with high torque,
many gear ratios possible with this bolt on jackshaft system  
No welding needed to install this jackshaft system it can be
installed in minutes using basic hand tools.
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
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.
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
Primary        Is the gear thats connected to the clutch with the chain
Secondary  Is the gear thats connected to the rear sprocket with the chain
minichoppers jackshaft
RETAIL PRICE
$109.00
RETAIL PRICE
$149.00
5/8" shaft clutches kits also
available
Typical jackshaft system installation on a Barstool Racer using the
6.5hp Honda clone engine. Shown with the 4.27 speed gear ratio
NEW