on the wheels as well as the angle of the driveshafts. Shortening the wheelbase at the rear will give you more
rear will yield the opposite results. In general a longer wheelbase is better on open and/or bumpy tracks and a
shorter wheelbase is better on tighter technical tracks.
By changing the rear hubs you can alter the axle height and roll centers of the vehicle. Lower axle heights
(higher pin positions) will provide more roll and give more rear traction. The car will change directions more
slowly, roll deeper into turns, and can be more forgiving on power or under braking. Lower axle heights are more
common on US style tracks. Higher axle heights (lower pin positions) will provide less roll and typically give less
on power rear traction. The car will change directions more quickly and can be more aggressive on power or
under braking but be more stable under acceleration. Higher axle heights are more typical on European style
tracks. When changing the axle height, the rear camber link location on the hub will also need to be adjusted to
maintain the pin to link distance. Whichever way you move the pin you will need to move the camber link the
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travel (droop) values. When running higher lower axle heights, you may need to limit your uptravel with o-rings on the shock shaft,
outside of the shock body and increase the amount of droop you’re running at the arm. When running lower axle heights you may
need to remove o-rings from the shock shaft to increase up travel, and decrease the amount of droop you’re running at the arm.
The front axle height can be adjusted from 0 to +1 using TKR9141 and -1 to -2 using TKR9141B by
changing the kingpin sleeves and pins. A lower axle height will have more steering and is typically
used on looser, low grip tracks. A higher front axle will have less steering and is typically used on high grip tracks.
A higher front axle can also be used on very bumpy tracks to prevent the car from flipping over in turns. Take note that
you must use the same color sleeve/pins together.
Wheelbase Adjustments
FORWARD
BACKWARD
Front:
vehicle may be twitchy and harder to drive. Thicker can increase on power steering and stability. We recommend
Center:
on-power rear traction but increases on-power steering and acceleration if traction is available. Thinner will
Rear:
steering and increases traction out of a corner. Going too thin will make your vehicle inconsistent, however. Thicker
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Using TKR9115C with TKR1261 will have less resistance to initial rotation versus TKR9115B, but will provide more consis-
loads. TKR9150 is a finer pitch gear and has less resistance to continuous rotation. Being finer, the power delivery is smoother than
O-rings: A tighter fitting oring (TKR5144B) will have more resistance to both initial and continuous rotation, as if the oil is thicker. This
is beneficial on higher grip tracks or tracks that are very rough and/or broken up. Looser fitting orings (TKR5144) are not used often
and have less resistance to both initial and continuous rotation, as if the oil is thinner. This is beneficial on lower grip tracks.
(TKR5144B). TKR5145B has all the same characteristics of a looser oring (TKR5144).
Rear Hubs
Front Axle Height
Rear Axle Options
TKR9287 has a longer stub axle and shorter driveshaft (bottom driveshaft/stub
axle in image) . It has more forward drive and more on-power rear grip. It has less
TKR9087 has a shorter stub axle and a longer driveshaft. It has less forward drive and less on-power grip. It
slower, bumpier tracks.
be less torsional flex and more rear grip on power. With the screws out there will be more
provides better consistency and faster lap times.
C Block Screws
28
Setup Information
(continued)
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