Anyone modified the seat base on GL1100?

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toomanybikes
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Anyone modified the seat base on GL1100?

#1

Post by toomanybikes »

I have a spare seat for my GL1100 that I'm having reworked (by a professional) into something more minimalist, like this from the Jan'25 BOTM. Is the owner still on here or can someone point me to a thread describing the seat mods?

The current plan is to rework the seat with the stock base and just get as close to the rear plastic hump as possible, but I'd be open to some clever cutting of the base.

Thanks for any forum guides.
PXL_20250530_193058051.jpg
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Asheville, NC, USA
Stable as of 16Jul25: '19 Triumph Scrambler XC, '22 Moto Guzzi V85TT, '81 Honda GL1100, '78 Honda CB750F SS, '10 BMW R1200RT
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Track T 2411
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Re: Anyone modified the seat base on GL1100?

#2

Post by Track T 2411 »

I haven't modified a seat base yet, but have ciphered on it. The base is some type of plastic/ nylon, which is easily cut with a jigsaw or hacksaw. I 'think' the rear bump could be easily removed to flatten out the back without weakening the base. It would leave a bit of a hole, but that could easily be covered.
The vinyl is stapled, so just about any shape would probably work...
"I have no special talent. I am only passionately curious." - Albert Einstein

"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow

"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown

Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!

Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!

In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
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toomanybikes
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Re: Anyone modified the seat base on GL1100?

#3

Post by toomanybikes »

UPDATE - Here's the modified seat, done by Dianna in Asheville (https://diannasshop.com/) Dianna has helped with multiple projects now and always delivers a good solution to my crazy ideas.

In this case, I wanted to slide back and little and reduce the King&Queen aspect without modifying the base. Interestingly, it looks longer then the original seat, even though it's not.
PXL_20250716_122335093.jpg
PXL_20250716_122325236.jpg
PXL_20250715_202132291.jpg
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Asheville, NC, USA
Stable as of 16Jul25: '19 Triumph Scrambler XC, '22 Moto Guzzi V85TT, '81 Honda GL1100, '78 Honda CB750F SS, '10 BMW R1200RT
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Track T 2411
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Location: Prairie du Sac Wisconsin

Re: Anyone modified the seat base on GL1100?

#4

Post by Track T 2411 »

Very nice work! Just curious, how much did that cost?
"I have no special talent. I am only passionately curious." - Albert Einstein

"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow

"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown

Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!

Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!

In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
toomanybikes
Titanium Member
Titanium Member
Posts: 313
Joined: Sun Oct 27, 2019 6:38 am

Re: Anyone modified the seat base on GL1100?

#5

Post by toomanybikes »

Track T 2411 wrote: Wed Jul 16, 2025 10:47 am Very nice work! Just curious, how much did that cost?
$360, frequent customer pricing
Asheville, NC, USA
Stable as of 16Jul25: '19 Triumph Scrambler XC, '22 Moto Guzzi V85TT, '81 Honda GL1100, '78 Honda CB750F SS, '10 BMW R1200RT
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