New crank
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,149
Likes: 6,173
From: SE Michigan
True, but they DO make money by recommending and installing things that are not needed. Props to the indy for not recommending things that are not needed.
Tourer
Joined: Aug 2007
Posts: 294
Likes: 15
From: Fancy Farm Kentucky
You've proved it will run one year, a lot of the answer depends on how much of that power you are really using? And how often? If your just cruising around 90%-95% of the time, you aren't abusing the bottom end much. If your living on the drag strip using all that power you probably need to be concerned. If your just making sure your buds know every once in a while that your bike is faster, you're probably fine
Seasoned HDF Member
Joined: Apr 2009
Posts: 44,909
Likes: 29,892
From: PNW
If you decide that you must do something with the bottom end, use Dark horse. You don't need a new crank, (unless you are planning on a stroked one for it,) but otherwise get yours balanced trued, and welded, and plugged, it will be better, and cheaper than a new crank. You can go with a timkin brg set up as well, for a couple hundred more, throw in some H beam rods, and have a totally bullet proof bottom end
Had a similar build on my 11. Spun the crank 4 months after the work was done. Had Dark horse do my crank.
Fwiw, I think he problem is if you hit it from lower RPMs, which over torques the crank.
Grand HDF Member
Joined: Oct 2015
Posts: 4,807
Likes: 6,933
From: Cincinnati OH.
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Seasoned HDF Member
Joined: Jan 2007
Posts: 20,616
Likes: 4,440
From: anacoco, la
I ran my fuel moto 107 making 98hp/124tq for over a year with the stock crank. after I traded it in, the guy who bought it had been running for at least 6 months. haven't heard from him since...