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Steve, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 6813
Experience:  30+ yrs. experience, MMI, HD technician, HD early, engine rebuild/performance, bike builder, kit bike program manager, CCI 2001-2004
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75 R17: 2007 HD Fat Boy Front Tire..5000 miles..dealership says

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2007 HD Fat Boy Front Tire is 140/75 R17. The tire last about 5000 miles and its being replace because of cupping. The local HD dealership says it was a bad tire. Well I'm on tire #2 and its happening again. What causes cupping?

Welcome. Thank you for choosing Just Answer.

if you are talking about scalloping on the tire edges, the only fix is to park the bike.

this is a natural wear issue for motorcycle tires caused by the stresses on the tire during cornering.

the harder you ride, the worse it gets.

in my experience, Avons usually outlast Dunlops for wear.

let me know if you need more help.


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