Product Description - j3 competition kosmic Manual

1. Seat Installation (100 and 125cc)
A (mm) Dimension......................................610mm
B (mm) Dimension......................................605mm
C (mm) Dimension......................................220mm
G (mm) Dimension......................................10cm
-If the driver is taller, measurements A and B can be increased by up to 10mm each,
while reducing dimension C by 5mm.
-If the track is very 'Green' lacking rubber all dimensions can be changed as well. Often
time dimensions A and B can be increased by 20-25mm in order to increase the effective
weight percentage on the rear of the chassis, thus increasing the chassis grip. This will
increases the chassis effectiveness when the driver is applying the power. In low grip
conditions the seat can also be raised higher by increasing dimension G from 10cm to 11-
11.5 cm. This change will effectively increase the chassis 'Side Bite' allowing the
chassis to work the tires more.
Part Number
0037.FP FLAT BOTTOM SEAT - FIBERGLASS
0037.00 STANDARD SEAT - FIBERGLASS
1A. Ballast (Weight Mounting)
J3 recommends using OTK weights, either 1 Kg (2.2 lbs) or 3 Kg (6.6 lbs). Part
Numbers for both items are: (PN 0275.03) and (PN 0275.01) When fastening the weights
to the seat use both provided holes on the weights with the proper hardware purchased
through J3 Competition. Check with the organization(s) you are competing with to
insure all rules are met. For general balance of the chassis depending upon how much if
any weight you need to mount, it should be placed opposite of the engine and below the
seat on the front edge that contours the driver's legs. This will provide for a good starting
point.
J3 Competition Inc. – Kosmic Owner's Knowledge Packet

Product Description

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