Material Type - j3 competition kosmic Manual

10A. Tuning Bars (Rear Torsion Bar)
Kosmic Racing Karts are provided with only one (1) style rear torsion bar. The bar is
made of steel and measures 470mm (PN 0235.GA). The bar is round on each end at
30mm with the center being flattened to resemble a 'Blade'. Since the rear torsion bar is
manufactured in a 'Blade' configuration we also suggest using it in the horizontal
position, thus the blade laying flat. In typical dry conditions we recommend to NOT use
the rear bar. The rear bar will make the chassis more stable; however, it can cause the
chassis to work the tires too much, which will result in poor tire wear and a large
possibility of an understeer.
*Note: This is a good option if you are looking for added grip
When should you use the rear torsion bar? The rear torsion bar has its main advantages
in longer sweeping corners. If the track layout is made of sweeping corners try the rear
bar, but only do this on applications where the Hp is greater than 100cc application.
11. Rear Hubs
The possible options for rear hubs on the Kosmic Kart are very large. They range from
different lengths to different material stiffness. All Kosmic (Racing Edition) Karts come
outfitted with magnesium rear hubs where Kosmic (Competition Edition) Karts come
outfitted with aluminum rear hubs. We recommend the magnesium hubs since they are
stiffer than the optional soft aluminum hubs. This creates added consistency as well as
improved handling and driver feel as well. Below is a breakdown of the different
options:
OTK – Part Number
0046.KE
0053.KE
0046.E0
0053.E0
0053.F0
Each Kosmic Kart comes standard with either 50 x 92 rear hub. This hub is
recommended for primary use. Using either the 56mm or 148mm rear hubs are great
options as well. The 56mm rear hub will allow the wheel and tire to flex more creating
the potential for a better outcome on lower Hp applications. The largest hub, 148mm, is
only used and recommended for use in gearbox applications. This hub adds more rear
grip and stability, which are often times required by larger Hp applications.
"This Hub is the best option nearly all the time" – J3
J3 Competition Inc. – Kosmic Owner's Knowledge Packet
Description
WHEEL'S BOSS AL D. 50 X 56
WHEEL'S BOSS AL D. 50 X 92
WHEEL'S BOSS MG D. 50 X 56
WHEEL'S BOSS MG D. 50 X 92
WHEEL'S BOSS MG D. 50 X 148

Material Type

Aluminum
Aluminum
Magnesium
Magnesium
Magnesium
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