Lowering kit
Thread Starter
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Cruiser
Joined: Mar 2010
Posts: 123
Likes: 17
Lowering kit
Hello,
15 days ago I installed Bitubo 13" rear shocks and Wilber springs on my FLHXS 22. I am very happy with Bitubo and their softness, which I cannot say about the Wilbers which are a little too stiff for me. I will see if it is a good combination in the coming months. However, what bothers me is that the Bitubo are 8 mm (1/3") higher and the Wilbers are 6 mm (1/4") lower, which means that the front end is about 14mm (ł⁵/₆₄) lower, which is still noticeable when riding. I would also add that the Road Sofa seat raised me about 3/4". Everything was adjusted and measured with the stock rider compared to the installed one. I'm thinking about installing a kit to lower the rear end by max 1" but they should be made of high-strength iron, not aluminum, and they should follow the angle of the original shock absorber. I read somewhere that La Chopper has these on offer. I sent an inquiry but they haven't responded. I'm interested in your opinions and suggestions.
Thanks and regards
15 days ago I installed Bitubo 13" rear shocks and Wilber springs on my FLHXS 22. I am very happy with Bitubo and their softness, which I cannot say about the Wilbers which are a little too stiff for me. I will see if it is a good combination in the coming months. However, what bothers me is that the Bitubo are 8 mm (1/3") higher and the Wilbers are 6 mm (1/4") lower, which means that the front end is about 14mm (ł⁵/₆₄) lower, which is still noticeable when riding. I would also add that the Road Sofa seat raised me about 3/4". Everything was adjusted and measured with the stock rider compared to the installed one. I'm thinking about installing a kit to lower the rear end by max 1" but they should be made of high-strength iron, not aluminum, and they should follow the angle of the original shock absorber. I read somewhere that La Chopper has these on offer. I sent an inquiry but they haven't responded. I'm interested in your opinions and suggestions.
Thanks and regards
Road Warrior
Joined: Aug 2014
Posts: 1,898
Likes: 390
From: NJ
Hello,
15 days ago I installed Bitubo 13" rear shocks and Wilber springs on my FLHXS 22. I am very happy with Bitubo and their softness, which I cannot say about the Wilbers which are a little too stiff for me. I will see if it is a good combination in the coming months. However, what bothers me is that the Bitubo are 8 mm (1/3") higher and the Wilbers are 6 mm (1/4") lower, which means that the front end is about 14mm (ł⁵/₆₄) lower, which is still noticeable when riding. I would also add that the Road Sofa seat raised me about 3/4". Everything was adjusted and measured with the stock rider compared to the installed one. I'm thinking about installing a kit to lower the rear end by max 1" but they should be made of high-strength iron, not aluminum, and they should follow the angle of the original shock absorber. I read somewhere that La Chopper has these on offer. I sent an inquiry but they haven't responded. I'm interested in your opinions and suggestions.
Thanks and regards
15 days ago I installed Bitubo 13" rear shocks and Wilber springs on my FLHXS 22. I am very happy with Bitubo and their softness, which I cannot say about the Wilbers which are a little too stiff for me. I will see if it is a good combination in the coming months. However, what bothers me is that the Bitubo are 8 mm (1/3") higher and the Wilbers are 6 mm (1/4") lower, which means that the front end is about 14mm (ł⁵/₆₄) lower, which is still noticeable when riding. I would also add that the Road Sofa seat raised me about 3/4". Everything was adjusted and measured with the stock rider compared to the installed one. I'm thinking about installing a kit to lower the rear end by max 1" but they should be made of high-strength iron, not aluminum, and they should follow the angle of the original shock absorber. I read somewhere that La Chopper has these on offer. I sent an inquiry but they haven't responded. I'm interested in your opinions and suggestions.
Thanks and regards
i have the legends 13 on my glide and get the full benefit of the longer stroke without much change in ride height. When tuned properly they are barely 1/4 in taller at rest with rider weight on them. But you get the full extra inch of travel when hitting bumps.
you shouldnt measure the bike unloaded because that doesnt matter. You have to look at how the bike sits at full weight of rider and/or passenger.
Last edited by Jersey Drew; Apr 27, 2025 at 10:46 AM.
Thread Starter
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Cruiser
Joined: Mar 2010
Posts: 123
Likes: 17
Hello,
Jersey Drew I completely agree with you. I think nothing would be lost if the rear end lowering kit was designed to have the same angle as the original shock absorber.
Thanks and regards
Jersey Drew I completely agree with you. I think nothing would be lost if the rear end lowering kit was designed to have the same angle as the original shock absorber.
Thanks and regards
Last edited by dragger; Apr 27, 2025 at 01:29 PM.
Road Warrior
Joined: Aug 2014
Posts: 1,898
Likes: 390
From: NJ
Hello,
Jersey Drew I completely agree with you. I think nothing would be lost if the rear end lowering kit was designed to have the same angle as the original shock absorber.
Thanks and regards
Jersey Drew I completely agree with you. I think nothing would be lost if the rear end lowering kit was designed to have the same angle as the original shock absorber.
Thanks and regards
good luck! i have installed a few on my friend's bikes and they work and do not bind. so you will not have any issues with that.
Thread Starter
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Cruiser
Joined: Mar 2010
Posts: 123
Likes: 17
Can I ask you to tell me which model you installed and where you bought them. If you happen to have any pictures of them installed. Many thanks.
Road Warrior
Joined: Aug 2014
Posts: 1,898
Likes: 390
From: NJ
i do not. my buddies purchased on their own and i just turned the wrenches. but i can say it was probably not the most expensive. they never complained and the kits held up as expected. i just know that suspension geometry is funny so i wouldn't do it personally.
Stellar HDF Member
Joined: Mar 2020
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From: West Coast
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Thread Starter
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Cruiser
Joined: Mar 2010
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these wont change the shock arch as they are a straight drop of the lower shock bolt hole, but you should cinch up your forks to fix the rake.
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Joe Kucinski
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The Advant Black lower kit works just fine. I was won over.
https://www.advanblack.com/2-inch-lo...2002-2022.html
https://www.advanblack.com/2-inch-lo...2002-2022.html
Hello,
15 days ago I installed Bitubo 13" rear shocks and Wilber springs on my FLHXS 22. I am very happy with Bitubo and their softness, which I cannot say about the Wilbers which are a little too stiff for me. I will see if it is a good combination in the coming months. However, what bothers me is that the Bitubo are 8 mm (1/3") higher and the Wilbers are 6 mm (1/4") lower, which means that the front end is about 14mm (ł⁵/₆₄) lower, which is still noticeable when riding. I would also add that the Road Sofa seat raised me about 3/4". Everything was adjusted and measured with the stock rider compared to the installed one. I'm thinking about installing a kit to lower the rear end by max 1" but they should be made of high-strength iron, not aluminum, and they should follow the angle of the original shock absorber. I read somewhere that La Chopper has these on offer. I sent an inquiry but they haven't responded. I'm interested in your opinions and suggestions.
Thanks and regards
15 days ago I installed Bitubo 13" rear shocks and Wilber springs on my FLHXS 22. I am very happy with Bitubo and their softness, which I cannot say about the Wilbers which are a little too stiff for me. I will see if it is a good combination in the coming months. However, what bothers me is that the Bitubo are 8 mm (1/3") higher and the Wilbers are 6 mm (1/4") lower, which means that the front end is about 14mm (ł⁵/₆₄) lower, which is still noticeable when riding. I would also add that the Road Sofa seat raised me about 3/4". Everything was adjusted and measured with the stock rider compared to the installed one. I'm thinking about installing a kit to lower the rear end by max 1" but they should be made of high-strength iron, not aluminum, and they should follow the angle of the original shock absorber. I read somewhere that La Chopper has these on offer. I sent an inquiry but they haven't responded. I'm interested in your opinions and suggestions.
Thanks and regards
Thousands have used them on Touring models for millions of trouble free miles.
They will lower your bike 1" at the rear axle. Since there is a bit more leverage on the shocks, your Bitubo's will ride even better, and you may bump up your pre-load just a tad (about half a turn), you can also adjust your damping, if needed, with the 5 position lever.
The physics of the design make the 6061 aluminum. The only steel ones I have seen are welded and the physics of the design have yielded failures occasionally.
Kevin
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