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Join Date: Nov 2007
Location: Chandler, Arizona
A 170/80 tire is too big for the Vulcan. The stock 150/90 is too big for the Vulcan, but thats what it was designed for. Looks like a Hoosier drag slick to me. Yet the Vulcan looks nothing like a dragster. A 170/80 will go on the rim fairly easily, but getting the rim/tire back on the bike is another matter. The stock tire barely fits. I would suggest removing the final drive gearcase to give you more room.
I personally hate huge rear tires on bikes. A 130/90-16 wasn't too bad, and is what most early cruisers (and my '97 Road King ) use, but these huge 300 tires just look ridiculous. To me it's kind of like using 24" wheels with a thin coating of rubber on vehicles that came with 15"-16" wheels with real tires. Hopefully both are fads that will eventually go away.
As far as using a shop, no shop is touching my wheels. I had an expensive aftermarket car wheel chewed up by a tire shop once, the idiot that did it pointed out that it still held air. I almost had to sue them to get them to pay for the wheel. I just took it in for a flat repair.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike