Stock bottom end reliability
Grand HDF Member
Joined: Sep 2010
Posts: 3,580
Likes: 215
From: Illinois
......all depends how you ride. If you like to get the full potential out of the motor and ride hard then I would do it and I did.
I just rather take some extra precautions and not have to worry about grenading the bottom end. Bottom end can go on a stock motor...again it's all about how you ride it.
Before I sent my lower end to Dark Horse my stock 96" crank was at .007"
I just rather take some extra precautions and not have to worry about grenading the bottom end. Bottom end can go on a stock motor...again it's all about how you ride it.
Before I sent my lower end to Dark Horse my stock 96" crank was at .007"
Stellar HDF Member
Joined: Jan 2013
Posts: 2,464
Likes: 50
From: Rouses Point, N.Y.
there are alot of 107's running around on the stock bottom ends without have any issues. with 555 to 585 lift cams and stage II head work , and your not dumping the clutch on a high revving engine you will be fine.
Grand HDF Member
Joined: Sep 2010
Posts: 3,580
Likes: 215
From: Illinois
That's true for sure. Even after you get moving and you hit it wide open all that power is being transferred throughout. Not saying you baby or beat the **** out of you bike, but when you have power you gonna ride te F$@k out of that scoot.
We take a risk every time we get on the throttle, so any way to minimize that is a plus.
My luck it would be in pieces w/o a doubt.
We take a risk every time we get on the throttle, so any way to minimize that is a plus.
My luck it would be in pieces w/o a doubt.
Thread Starter
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Tourer
Joined: May 2011
Posts: 300
Likes: 6
From: South Carolina
I won't be drag racing or doing burnouts too much. I just miss the power my old bike had and want to get more torque out of this one but keep it reliable. I go on trips and don't want a major break down in the middle of no where. Being that the crank is the weak link I don't want to push it too close to point of failure. I'm not too far from Starracing.
Billy
Billy
Elite HDF Member
Joined: Nov 2006
Posts: 3,647
Likes: 11
From: Stockbridge, GA (Atlanta)
HQs 107 on 09 RG - stock bottom end - 43k miles burnouts / wheelies and general mayhem -- no problems -- this is my second 107 -- if you do the bottom end go 113 or better -- or look into crate motor from S&S not much difference in price and you get a warranty
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
Traditionally, and historically, the 2004, and 2007 model years were the ones that were prone to sissoring.
As Todd and others already pointed out, if you get the tire warm, and drop the clutch drag-racing style, repeatedly, you can harm most anything.
Ride it, have fun and don't worry.
Scott
As Todd and others already pointed out, if you get the tire warm, and drop the clutch drag-racing style, repeatedly, you can harm most anything.
Ride it, have fun and don't worry.
Scott
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Elite HDF Member
Joined: Sep 2012
Posts: 3,791
Likes: 57
From: N Texas
If you have not done your build yet, check your crank run-out first. IMHO if it is over .006" then fix the crank before doing the build. I know one guy that did a build at .007", and now he is having to do the build all over again. 
Last edited by HD Pilot; Oct 18, 2014 at 09:03 PM.
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Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,897
From: Bedford UK
I suggest you pay attention to post #7 first, then #6! There are hundreds of thousands of these things around the World and they are not all stuck on the roadside with knackered crankshafts.......