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21 street glide 107 motor upgrade

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Old Dec 2, 2024 | 11:01 PM
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Default 21 street glide 107 motor upgrade

Hey everyone
I have a 21 street with the 107 when I bought it new the dealer did stage 1 SE high flow air cleaner and rinehart slip ons
I’ve been riding for 15+ years, little bit of everything bike nights/weekend in Milwaukee, weekend trips 2 up with the wife,
I now have right around 15k on it and I’m thinking of some motor work
been talking to fuel moto and I’m getting a quote from them to do the work
options are
1. woods cam, adjustable lifters, x pipe, tune and couple other things I will get more details in the next day or 2 when they email me the quote
2. Fuel moto 124 kit

what do you think, what are your experiences with either one
like any of us I want more power, better “Harley” sound, but don’t want to hurt long time drivability
 
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Old Dec 2, 2024 | 11:13 PM
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Originally Posted by JAJA
Hey everyone
I have a 21 street with the 107 when I bought it new the dealer did stage 1 SE high flow air cleaner and rinehart slip ons
I’ve been riding for 15+ years, little bit of everything bike nights/weekend in Milwaukee, weekend trips 2 up with the wife,
I now have right around 15k on it and I’m thinking of some motor work
been talking to fuel moto and I’m getting a quote from them to do the work
options are
1. woods cam, adjustable lifters, x pipe, tune and couple other things I will get more details in the next day or 2 when they email me the quote
2. Fuel moto 124 kit

what do you think, what are your experiences with either one
like any of us I want more power, better “Harley” sound, but don’t want to hurt long time drivability
or you could sell or trade for a new or used 24 SG..that 117 would be a big upgrade over your 107 and if left alone should get you the reliability you desire and some warranty left. it'll have more rear suspension travel for your two up trips with your wife... apply the money from the 124 kit, these are going for real good prices now at this time of year, lots of leftover inventory to move with 25s around the corner..that's what I would do at this point
 

Last edited by mjwebb; Dec 2, 2024 at 11:46 PM.
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Old Dec 2, 2024 | 11:57 PM
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Probably should of mentioned my other upgrades
bars, cicada speakers and amp, and rear super shox
love the bike that’s why I’m thinking of the motor work kinda want to prevent myself from bike shopping lol
 
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Old Dec 3, 2024 | 05:54 AM
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Originally Posted by JAJA
Hey everyone
I have a 21 street with the 107 when I bought it new the dealer did stage 1 SE high flow air cleaner and rinehart slip ons
I’ve been riding for 15+ years, little bit of everything bike nights/weekend in Milwaukee, weekend trips 2 up with the wife,
I now have right around 15k on it and I’m thinking of some motor work
been talking to fuel moto and I’m getting a quote from them to do the work
options are
1. woods cam, adjustable lifters, x pipe, tune and couple other things I will get more details in the next day or 2 when they email me the quote
2. Fuel moto 124 kit

what do you think, what are your experiences with either one
like any of us I want more power, better “Harley” sound, but don’t want to hurt long time drivability
I’ve had way too many bikes and have done way too many engine upgrades. The best value will be the FM stage 2, but the most fun will be the FM 124. Of all the bikes I’ve done engine upgrades to, the FM 128 in my ‘20 RGL was the best running of them all.

Go with the 124, you will not regret it.
 
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Old Dec 3, 2024 | 07:19 AM
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Originally Posted by JAJA
Probably should of mentioned my other upgrades
bars, cicada speakers and amp, and rear super shox
love the bike that’s why I’m thinking of the motor work kinda want to prevent myself from bike shopping lol
right on, and with only 15,000 miles it should be great fun for many more years
 
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Old Dec 7, 2024 | 07:46 AM
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Just recently upgraded my 21’ SG 107 with a stage II also. Couldn’t be happier. Sound and the difference in performance was exactly what I was looking for. I’m fully in the camp on putting the money in your ride and not opting to go for a 24’ or newer. It will cost you a lot more but that may not be an issue. Chasing cubes in motor size is a trap some people fall into and usually regret it at some point. If you love your current bike, I’d just put the money into that. I personally don’t care for the changes on the ‘24’s so it was a no brainer for me. I also went with a Woods 22XE cam with woods lifters, new cam bearing, SE pushrods, S&S tappet cuffs, SE intake manifold and S&S cam chain tensioner. Had the FM jackpot header installed when I did a stage 1 the previous year. Good luck and keep us posted.
 

Last edited by Steelie68; Dec 7, 2024 at 07:47 AM.
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Old Dec 8, 2024 | 09:12 PM
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The FM 124 kit is a blast. I did it two years ago on my 2021 King and love it. It runs great, smooth and reliable.
 
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Old Dec 9, 2024 | 10:19 AM
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Originally Posted by Mchad
The FM 124 kit is a blast. I did it two years ago on my 2021 King and love it. It runs great, smooth and reliable.
How many miles on it? I've seen some reports the bottom end isn't holding up after xxxx miles, needing a Dark Horse rebuild. I shied away from it for that reason, and the money, went Stage III Kit instead - which had it's own parts and builder competency issues. Now that these are completed after much expense and angst, it is hella fun to ride the high compression 117 in a softail.
 
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Old Dec 9, 2024 | 12:10 PM
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Originally Posted by Old New Rider
How many miles on it? I've seen some reports the bottom end isn't holding up after xxxx miles, needing a Dark Horse rebuild. I shied away from it for that reason, and the money, went Stage III Kit instead - which had it's own parts and builder competency issues. Now that these are completed after much expense and angst, it is hella fun to ride the high compression 117 in a softail.
Not a lot, around 7000 since the job. I'm not worried about it. The 107 M8 bottom end isn't any less flimsy then the bikes they're throwing 131 kits on. I don't beat on it. That's when you start to get in trouble.
 
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Old Dec 9, 2024 | 01:11 PM
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Originally Posted by Mchad
Not a lot, around 7000 since the job. I'm not worried about it. The 107 M8 bottom end isn't any less flimsy then the bikes they're throwing 131 kits on. I don't beat on it. That's when you start to get in trouble.
Define: "beat on it"? I'm asking only because, what's the point in doing a big power build if you're not gonna get on it? I have a lot more fun blasting off now days!
 
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