When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
What year bike? I know the older ones you can just enlarge the fender holes to allow for a slight raise up. But the newer ones I hear requires a new bracket
Puller is right!! I went to a 21" on my 08', tire spun freely on the stand. Rode 200 miles on a saturday, got home and had an 8" burn mark on my fender... At higher speeds, the tire expanded just enough to rub. Higher the speed, higher the heat. Nothing a fender repaint couldn't fix. Lesson learned I guess. I oblonged the rear holes on the fender mount to tip the fender just a touch. I would say now I have about 1/4" clearance between tire and fender with no issues.
I have a '14 Street Glide Special. I put a 21" up front. Harley lowered the front fender on the'14. There are a few companies that make a bracket that raises it to fit the 21". Doesn't effect the look.
21" on my front and no modification. Apparently the Metzelers are lower in the middle of the tire opposed to others that are higher. Been riding with 21/17 and no fender burns.
BLUF: Yes, it will effect handling. What you really need to know is will it "adversely" effect handling and my opinion as well as most others I have read on this and other forums is, no it will not adversely effect handling. Keep in mind that when you install a 21" front wheel you are making changes to the motorcycles contact patch to the ground, you are making slight changes in the front end geometry, however slight that might be it will have some effect on the handling. The rolling "weight" of the front wheel changes somewhat and therefore the gyroscopic effects from the front wheel will be slightly different. All of the wheel manufacturers and after market shops etc will tell you the bike is still within safe geometry angles for the front end. Rake and trail numbers are within safe operating parameters.
Is there a major "seat of the pants" noticeable change in handling, again in my opinion, no.
When I installed my 21" front, I also installed the mono tube cartridge system in the front forks lowering the front end 1" in the process. These have an impact on handling, a positive one in most opinions. I also installed 10" WO578 Bagger Bars, these give a different "feel" to the front end. I installed the 944 rear shocks which also have an impact on handling to some degree as the rear suspension now feels and behaves differently.
Does a 21" front wheel effect ABS? I would also say no to that. Your ABS will still continue to function. I converted to a 13" single disc brake system when I installed my 21" front wheel, ABS works as it's suppose to work, I got up to speed (started with various speeds, slowly increasing the speed) and pulled as hard as I could on the front brake, ABS works.
I'm very happy that I went with the 21" front wheel, I really like the look and to me there are no adverse effects to the handling or ABS functionality of the bike.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.