My '92 Fat Boy resurrection
6th Gear
Joined: Jan 2012
Posts: 12
Likes: 0
From: Alameda, CA
i think even a 180 may be pushing it on there. but your headed in the right direction there. Just had to do the basic same thing to my deuce. Bought it from someone who left it under a car port for 6 years in SF bay. had major problems. Just make sure to do it all right the first time. if you dont youll always notice that one thing you rushed on. good luck and have fun
Ultimate HDF Member
Joined: Jul 2007
Posts: 5,716
Likes: 103
From:
Look like Hell Bents, but those would have a WCC logo somewhere.
Ultimate HDF Member
Joined: Jul 2007
Posts: 5,716
Likes: 103
From:
http://www.dansmc.com/tirespecs1.htm
MT 90 says it is 130mm. Not sure why they would have cut the horns off if not to go wide tire. You can get a 180 (with belt) 200 (with chain). You need to put the newer twin cam swing arm in there. I think with the stock evo swingarm 150-160 is gonna be max. Do a search for Softail wide tire conversion.
https://www.hdforums.com/forum/evo-c...l-project.html
https://www.hdforums.com/forum/evo-c...4-softail.html
MT 90 says it is 130mm. Not sure why they would have cut the horns off if not to go wide tire. You can get a 180 (with belt) 200 (with chain). You need to put the newer twin cam swing arm in there. I think with the stock evo swingarm 150-160 is gonna be max. Do a search for Softail wide tire conversion.
https://www.hdforums.com/forum/evo-c...l-project.html
https://www.hdforums.com/forum/evo-c...4-softail.html
Club Member
Joined: May 2007
Posts: 145,895
Likes: 821
From: 40 miles Northeast of Indy..
Did a complete tear down on one back in 72, its a job but just take U time and do her right.
So far Ur bike reminds me of a basket case without the Basket.
All it takes is time and $$$$ and she'll be a good ride.
So far Ur bike reminds me of a basket case without the Basket.
All it takes is time and $$$$ and she'll be a good ride.
Road Captain
Joined: Apr 2010
Posts: 520
Likes: 3
From: East Coast
Tires
I think you are going to max out at 150 without any mods. That is what I have on my 01 Fatty. Pick below.
Right on man, thanks!
More questions since I'm used to car/truck tire sizes.
My front is an Avon 90R21. What size is that?
My rear Avon is an MT90R16. I was told it was a 180mm but that seems wrong.
I scored a set of OEM Fat Boy wheels, so they are 3.5" wide I believe. I know you need an aftermarket swingarm, tranny offset, etc...to run a wide rear tire; but does that mean anything over 200mm? Can I run a 150 or 180 without changing anything? If not, what do I need to change? Since the PO cut the rear fender struts off, the drive belt is really the only thing holding me up. I've read where people say change to a more narrow pulley/belt but that seems odd to me. Thoughts and or input?
Thanks again everyone!
More questions since I'm used to car/truck tire sizes.
My front is an Avon 90R21. What size is that?
My rear Avon is an MT90R16. I was told it was a 180mm but that seems wrong.
I scored a set of OEM Fat Boy wheels, so they are 3.5" wide I believe. I know you need an aftermarket swingarm, tranny offset, etc...to run a wide rear tire; but does that mean anything over 200mm? Can I run a 150 or 180 without changing anything? If not, what do I need to change? Since the PO cut the rear fender struts off, the drive belt is really the only thing holding me up. I've read where people say change to a more narrow pulley/belt but that seems odd to me. Thoughts and or input?
Thanks again everyone!
Road Master
Joined: May 2009
Posts: 1,232
Likes: 8
From: Powder Springs, GA
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Road Master
Joined: Nov 2009
Posts: 890
Likes: 3
From: Central CT
Nice man looks like ya got yer hands full there. Was this in a wreck or just some boneheads failed project?
Have ya checked the frame to see if it's strait with no cracked welds, any time I see something like this it's the 1st thing I check.
Just sayin.
Good luck with it.
Have ya checked the frame to see if it's strait with no cracked welds, any time I see something like this it's the 1st thing I check.
Just sayin.
Good luck with it.
Seasoned HDF Member
Joined: Nov 2009
Posts: 15,705
Likes: 22,718
From: Farmington ,MS
Since the frame horns are already gone, might as well put at least a 200 on there...twin cam swing arm will not fit...it is too wide where it bolts to the frame. First pics are 200 with sprocket brake...last one is 250 I am currently installing...200 is with a santee kit...plenty of those still on ebay...250 is with a radium kit
