Jerry Cheney - 81
81 - Jerry Cheney




Shop Phone: (641) 459-2212 ~ Located in Central Standard Time Zone
Race Shop Hours: open 9:00am to Noon CST ~ Closed for Lunch ~ open 1:00pm to 5:00pm CST

Fork Products
Modern Bike
  -Adjustable
  -Non Adjustable
  -Front Axle Ctr Adp
Fork Head Adjustors
Fork Clamps
  -Adjustable
  -Non Adjustable

Steering 101



Click to go back to our Home page Click to go to our Modern Bike Products page Click to go to our Mini Bikes products page Click to go to our Clutch Assembly page Click to go to our Quick Change Adapter Kit page Click to go to our Fork Clamps page Click to go to our Front Forks Product page Click to go to our Front Wheels page Click to go to our Rear Wheels page Click to go to our Foot Pegs & Brackets page Click to go to our Brakes page Click to go to our Swing Arms page Click to go to our Racing Frames page
Click here to open our Catalog Click here to learn how steering works

Click here to go to our Back Room Bargains page




Contact Us
at
(512) 751-8811
(641) 459-2212
NEW -- Meeting the 2009 Rules!!
Adjustable Fork Clamps  :   for Honda®,  Suzuki®, Yamaha®, Kawasaki® and KTM®
These fork clamps are made for Modern Bikes with a 8 1/2" center. Adjustable offsets range from 15 through 40. Each offset insert is design with 2 offset measurements. The clamps will come with one pair of centered offsets and a second pair of offsets. Additional offsets sold separately.

Adjustable Fork Clamps (8 1/2" center)$ 525
(includes one pair of centered offsets and one additional offset pair)
Additional Offset$ 55pair






Adjustable Drop-Down Fork Clamps  :   for Honda®,  Suzuki®, Yamaha®, Kawasaki® KTM® etc...
These custom fork clamps are made to accomodate shorter inverted fork tubes (27 1/7" long) for Modern Bikes. Adjustable offsets range from 45 through 70. Each offset insert is design with 2 offset measurements. The clamps will come with one pair of centered offsets and a second pair of offsets. Additional offsets sold separately.

Adjustable Fork Clamps $ 625
(includes one pair of centered offsets and one additional offset pair)
Additional Offset$ 55pair

Fork Head Adjustor
Change your rake with these Fork Head Adjustors. By inserting one adjustor in the top of your fork head you can position this for a +0.50 or -0.50 degrees over 30". Add an adjustor in the bottom of your fork head and now you have an adjustment of ~ +1 or -1 degree over the 30". Each Adjustor comes with Adjusting Offset, Race and Bearing.


To order you will need to supply the diameter, thickness and length of your fork head.

Price:
Single (3-piece set)  $ 55
Pair (two 3-piece sets)  $ 110
Cut your stem to fit  $ 30
New Stem  $ 55



Upper & Lower Fork Clamps and Front Axle Center Adapters
The Combo Kit assists in creating better handling of your bike. Designed to work with your bikes standard factory components. The Clamps have a 7 5/8" tube centers with a 68mm offset. The Front Axle Center Adapters relocates the front wheel's axle in line directly with the fork tubes. These adapters are most effective with fork clamps that have a 68mm-75mm offset and works with the factory standard wheels.

Available in both Gold or Silver. There is a bracket available to hold your front disk caliper which is sold separately for $25.00

Honda CRF450: 
Combo Kit (does not include bracket)$525combo
Upper & Lower Fork Clamps$325set
Front Axle Center Adapters$260set
Front Disk Caliper Bracket$ 25each
Yamaha YZF450: 
Combo Kit (includes handle bar clamps, does not include bracket)$525combo
Upper & Lower Fork Clamps$330set
Front Axle Center Adapters$260set
Front Disk Caliper Bracket$ 25each
Suzuki RMZ450: 
Combo Kit $525combo
(includes handle bar clamps, does not include bracket)
Upper & Lower Fork Clamps and handle bar clamps$330set
Front Axle Center Adapters$260set
Front Disk Caliper Bracket$ 25each
Kawasaki KX450: 
Combo Kit $525combo
(includes handle bar clamps, does not include bracket)
Upper & Lower Fork Clamps and handle bar clamps$330set
Front Axle Center Adapters$260set
Front Disk Caliper Bracket$ 25each
KTM: 
Combo Kit $620combo
(includes fork head stem & handle bar clamps, does not include bracket)
Upper & Lower Fork Clamps w/stem and handle bar clamps$390set
Front Axle Center Adapters$260set
Front Disk Caliper Bracket$ 25each

Adjustable Fork Clamps - 7 5/8" center or 8 1/2" center  :   for Honda®, Yamaha®, Kawasaki® and KTM®
These fork clamps are made for 35mm-41mm tube holes with either a 7 5/8" center or 8 1/2" center. Adjustable offsets range from 55 through 75. Each offset insert is design with 2 offset measurements. The clamps will come with one pair of offsets, additional offsets sold separately.



Adjustable Fork Clamps (7 5/8" center)$ 465
(includes one pair of offsets)
Adjustable Fork Clamps (8 1/2" center)$ 525
     for Honda, Yamaha, Kawasaki and KTM modern bikes
Additional Offset$ 55pair
Handle Bar Mounts$ 50pair

Fork Assembly: Non-Adjustable Wide Tree (Vintage Flat Trackers)
Vintage Flat Track Fork Clamp Assembly "Triple Tree".  Non-adjustable clamps machined from 6061-T6 billet aluminum.  Designed with a 58 & 75 offset, 7 5/8" or 8 1/2" tube centers.  Available in 35mm or 36mm tube hole size.  An adjustable 1" aluminum stem and nut.  Pre-drilled to hold number plates.
This front end will create a much more rigid fork steering response.

Price:
7 5/8" wide tree$ 370 assembly
8 1/2" wide tree$ 395 assembly
Handlebar Mounts$ 50 assembly

Sales & Service
13359 N Hwy 183
Suite 406 - PMB 180
Austin, TX  78750
(512) 751-8811
Carlyn K. Cheney

Design & Fabrication
21716   117th Lane
Bloomfield, IA  52537
Jerry Cheney - 81k
Jeremey Cheney


STEERING 101: How it works.
The basic elements of steering include rake, trail, and offset.

The trail plays a role in stabilizing the front-end by helping your tire develop a restoring force that attempts to keep your motorcycle traveling in a straight line.  The longer the trail, the more the motorcycle will resist turns and be more stable on straight line driving.  A shorter trail allows for quick and easier turns.  The shorter trail makes the motorcycle want to "fall" into the turns.

The rake plays a role by allowing any lean of the wheel to be translated into a turn of the wheel towards that lean.  A more vertical rake allows the bike to handle bumps and ruts well, HOWEVER, by having a smaller rake you create a smaller trail and forfeit some straight line driving stability.  A smaller rake also produces a lighter handling feel when turning. As you increase the rake, the motorcycle will produce a more heavier or sluggish handling feeling since the weight of the chassis is attempting to self-straighten the fork as it hangs in the steering axis.

The trail and the rake directly affect each other.  If you shorten one, you automatically shorten the other.  The opposite is also true.  If you increase the angle of the rake, you also increase the length of the trail.

The third basic element is the offset.  Offset is defined in millimeters (mm) and is measured from the centerline of the top of the steering stem axis to the centerline of the top of the fork tubes.  An offset provides a second option for the setup of how the motorcycle will handle. The smaller offsets (35mm - 60mm) allows the motorcycle to angle more into the corner and push through the turn. However on exiting the corner, you will experience less traction allowing you to turn easier and stay on the inside of the track.  As you increase the offset (60mm - 75mm) you obtain more traction coming out of the corners, but the greater offset forces the motorcycle into an upright position and you will drive more towards the outside of the track coming off the corner.

Other factors such as weight transer when braking, fork length, and tire size may also play a role in changing the trail and rake and should be given consideration when determining your set-up.