Changing out front rotors.,,,
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Grand HDF Member
Joined: Mar 2007
Posts: 4,922
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From: Deep in the heart of New Jersey
Changing out front rotors.,,,
I'm about to change out the rotors on my '05 Road King. I never did them before, but it looks pretty straight forward. And tricks I need to know to get the old bolts out?.,,
https://www.homedepot.com/p/Lisle-Ha...FSO-swodGzgEBg
Cruiser
Joined: Jul 2014
Posts: 218
Likes: 7
From: Indiana
Those new bolts are damned expensive! Can get by without them?
Seasoned HDF Member
Joined: Jun 2006
Posts: 28,520
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From: Vermont
Technically, the FSM states to replace front rotor bolts each time, but the rears can be used 3 times. I know some folks that have reused the fronts without incident. The front brakes get used much more than the rears generally speaking. Its up to the individual and the risk theyre willing to take.
Tourer
Joined: Mar 2018
Posts: 462
Likes: 87
From: Southern California
I've never tried it but I'll bet if you measured the length of a new bolt and then pulled it out after a while it would be measurably stretched.
Bolt stretch used to be a way to measure proper torque on some fasteners.
Bolt stretch used to be a way to measure proper torque on some fasteners.
Cruiser
Joined: Jul 2014
Posts: 218
Likes: 7
From: Indiana
Technically, the FSM states to replace front rotor bolts each time, but the rears can be used 3 times. I know some folks that have reused the fronts without incident. The front brakes get used much more than the rears generally speaking. Its up to the individual and the risk theyre willing to take.
I'm not worried about the bolts shearing off, once installed. I'm thinking more about the bolts breaking as I torque them?
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Doubtful that they will break, it is just good practice. I work in the high performance engine industry and we typically replace certain bolts upon a yearly freshin up. High heat and load is typically a bolt to replace. just my opinion of course.