21" wheel install problem- need advice !!!
Intermediate
Joined: Dec 2007
Posts: 38
Likes: 0
From:
RE
I have a similar problem on my father-in laws 05' FLHT. We put a 21" wheel on the front and can't get it to spin over. My problem though is when the axle nut is tightened. The wheel spins free until we tighten up the axle nut. I think we need to check out spacers but something to check I guess?
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,241
Likes: 7
From: Daytona, Fla.
If the outer pad is dragging, shim the caliper out from the mount. If the inner pad is dragging, shim the rotor out from the hub. If you run with a lot of drag the resulting heat will warp the rotors.
Thread Starter
|
Road Captain
Joined: May 2007
Posts: 648
Likes: 0
From: STRONG ISLAND
ok- measured the thickness of the rotors=same. so the calipers have to be shimmed. Now my question is, do they have to be shimmed b/c the new hub size is different and if so is the new hub size different b/c of lak of quality ??
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,241
Likes: 7
From: Daytona, Fla.
Not necessarily lack of quality, just different size. Are the new rotors setting wider or narrower than the stock set up?
Road Captain
Joined: Feb 2008
Posts: 559
Likes: 0
From: La Vergne, TN
If neither the rotor or the caliper floats you need to center the rotor in the space between the brake pads. You do that by shimming the calipers or the rotors. Disc brakes will have a small amount of drag since only the seals retract the pads, but the drag should be slight unless your caliper or rotor is positioned wrong.
If the outer pad is dragging, shim the caliper out from the mount. If the inner pad is dragging, shim the rotor out from the hub. If you run with a lot of drag the resulting heat will warp the rotors.
If the outer pad is dragging, shim the caliper out from the mount. If the inner pad is dragging, shim the rotor out from the hub. If you run with a lot of drag the resulting heat will warp the rotors.
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,241
Likes: 7
From: Daytona, Fla.
My bad! That's what I get for goin' with an old memory! You're right, they bolt inside the mounts, so you would just reverse the shimming depending on which side is rubbing.
Road Captain
Joined: Feb 2008
Posts: 559
Likes: 0
From: La Vergne, TN
One thing for sure to check is the brake fluid level, if its too full, those pistons wont allow the pads to hang on the rotors like they should.
Theres a few things to check out, as in cleaning the pistons and checking for proper/even function, pull the pad pins to make sure they have a little anti-sieze so the pads move smoothly and checking the rotors for runout. Just cause their new doesnt mean one could not be out of spec.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,241
Likes: 7
From: Daytona, Fla.
That's when you start thinkin' spacers.
Thread
Thread Starter
Forum
Replies
Last Post
