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Rear Wheel Adjustment.

 
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bmcsheehy



Joined: 22 Jan 2005
Posts: 972
Location: Massachusetts USA

PostPosted: Fri Feb 25, 2005 12:50 pm    Post subject: Rear Wheel Adjustment. Reply with quote

Has anyone with a chain drive tried to tweek the angle of their rear wheel to make the sidecar track better.
Angle the wheel to the right very slightly to aid the toe in on the sidecar, maybe tire wear too. Confused
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thespis



Joined: 19 Feb 2005
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PostPosted: Fri Feb 25, 2005 1:10 pm    Post subject: Rear Wheel Adjustment Reply with quote

chain wear would suffer as well...
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Bandit Bill



Joined: 31 Jan 2005
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Location: Hamilton, Ontario, Canada

PostPosted: Fri Feb 25, 2005 1:40 pm    Post subject: Re: Rear Wheel Adjustment Reply with quote

thespis wrote:
chain wear would suffer as well...


It's best to keep the drivetrain (drivechain?) all in alignment. In addition to increased sprocket/chain wear, it's going to be hard on the wheel bearings due to a lateral wheel wobble being introduced, as well as the countershaft bearing seal and bearings being stressed by the unequal pull on the bearing assembly inside of the case.

With your Blackbird, you'll also run into issues with your rear brake caliper assembly, which uses the swing arm to mount against flat.. the brake rotor will be rotating against it less than square, causing premature, uneven pad wear.
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bmcsheehy



Joined: 22 Jan 2005
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PostPosted: Fri Feb 25, 2005 2:14 pm    Post subject: Reply with quote

So what is the best method to ensure the wheel is straight?
The rear caliper is mounted to the axel and held from rotating by the swing arm.
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Bill
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Bandit Bill



Joined: 31 Jan 2005
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Location: Hamilton, Ontario, Canada

PostPosted: Fri Feb 25, 2005 2:35 pm    Post subject: Reply with quote

bmcsheehy wrote:
So what is the best method to ensure the wheel is straight?
The rear caliper is mounted to the axel and held from rotating by the swing arm.


But the rear caliper mount, which mounts on the axle, is held true by the slot on the swingarm, correct? If the axle is out of true alignment, the caliper mount won't be meeting the swingarm true i'd think.. but i could be wrong here in it's effect on the brake pads.
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bmcsheehy



Joined: 22 Jan 2005
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PostPosted: Fri Feb 25, 2005 3:08 pm    Post subject: Reply with quote

No, I do not believe so. The axel aligns the caliper, the slot only stops it from spinning. There is a ton of slop in the slot. I say a ton probably .010 of an inch.
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Bill
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swaybar2002



Joined: 26 Jan 2005
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PostPosted: Sat Feb 26, 2005 12:03 am    Post subject: Reply with quote

A string stretched tight equal distance from the wheel (not the tire) works well for checking to see if the bike is in line front and rear.
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swaybar2002



Joined: 26 Jan 2005
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PostPosted: Sat Feb 26, 2005 12:08 am    Post subject: Reply with quote

Not intending to stray from the idea of cocking the rear wheel but in talking about the adjustemnts of the rig 's tracking I asked this question previously with no response.
Does anyone play with the scrub radius of the front wheel to adjust the tracking of the rig? Spacer plates maybe?
Claude
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bmcsheehy



Joined: 22 Jan 2005
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PostPosted: Sat Feb 26, 2005 1:04 am    Post subject: Reply with quote

No, I have not, but I know someone who has.
Could not space the wheel over enough using the lug studs to make any difference.
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Bill
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zentime



Joined: 22 Jan 2005
Posts: 825
Location: Massachusetts USA

PostPosted: Sat Feb 26, 2005 1:14 am    Post subject: Reply with quote

swaybar2002 wrote:
Not intending to stray from the idea of cocking the rear wheel but in talking about the adjustemnts of the rig 's tracking I asked this question previously with no response.
Does anyone play with the scrub radius of the front wheel to adjust the tracking of the rig? Spacer plates maybe?
Claude


what Bill said.

The limitation was the length of the studs. Within that limitation, it was difficult to perceive any difference.
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swaybar2002



Joined: 26 Jan 2005
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PostPosted: Sat Feb 26, 2005 1:37 am    Post subject: Reply with quote

So what adjustments are typical for an HPS rig? If they are run 'flat' with no leanout what is left..toe-in??
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Claude Stanley

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bmcsheehy



Joined: 22 Jan 2005
Posts: 972
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PostPosted: Sat Feb 26, 2005 2:31 am    Post subject: Reply with quote

Yes and I only use about 1/2 inch toe in.
Then the rest is spring and shock adjutments, maybe tire pressure.
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Bill
High Performance Sidecaring... ...There is nothing "HACKED" about it.
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