The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Era Specific and Model Specific > Frame Mount EVO Sportster Talk (1986-2003 models)
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Active Threads
0 How much is too much?
Last Post: Ferrous Head
Posted On: 6 Minutes Ago
Replies: 38
Views: 1,419
0 my rear wheel
Last Post: stikflote
Posted On: 6 Minutes Ago
Replies: 12
Views: 264
0 Ironhead Oil Pump Gurus, come inside.
Last Post: Ferrous Head
Posted On: 12 Minutes Ago
Replies: 61
Views: 4,455
0 1976 Ironhead Top End Rebuild
Last Post: brucstoudt
Posted On: 16 Minutes Ago
Replies: 18
Views: 1,625
0 Trans/Year Interchangeability Question
Last Post: ferretface
Posted On: 17 Minutes Ago
Replies: 132
Views: 4,208
0 Delete rocker box breathers or not?
Last Post: NGOT8R
Posted On: 24 Minutes Ago
Replies: 23
Views: 452
0 520 conversion for ironheads
Last Post: brucstoudt
Posted On: 36 Minutes Ago
Replies: 15
Views: 692
0 1960 XLCH in the UK
Last Post: Ferrous Head
Posted On: 54 Minutes Ago
Replies: 209
Views: 22,049
0 Keep & Kill
Last Post: fafcpa
Posted On: 1 Hour Ago
Replies: 15,217
Views: 855,175
0 Trying to trace a seat part number ...
Last Post: neilp
Posted On: 1 Hour Ago
Replies: 24
Views: 706
0 Mid or forward controls.
Last Post: Tomcatt
Posted On: 2 Hours Ago
Replies: 173
Views: 47,060
0 never mind
Last Post: Highly-Dangerous
Posted On: 2 Hours Ago
Replies: 127
Views: 8,889
0 clutch spring compressor
Last Post: NLXL
Posted On: 3 Hours Ago
Replies: 21
Views: 446
0 This week on Craig's list
Last Post: ryder rick
Posted On: 3 Hours Ago
Replies: 4,523
Views: 562,317
5 What Color Helmet is Most Noticable?
Last Post: boomerguy
Posted On: 3 Hours Ago
Replies: 74
Views: 10,441
0 Your Motorcycle Workspace/Garage
Last Post: duffy
Posted On: 4 Hours Ago
Replies: 11
Views: 251
0 Hot Chicks on Hot Bikes
Last Post: Stairman
Posted On: 4 Hours Ago
Replies: 10,519
Views: 1,873,880
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Stairman
Posted On: 4 Hours Ago
Replies: 46,114
Views: 7,307,439
0 This is gonna hurt.
Last Post: decman
Posted On: 4 Hours Ago
Replies: 7,907
Views: 1,615,805
0 A Day in the Life...
Last Post: DK Custom
Posted On: 4 Hours Ago
Replies: 677
Views: 84,361
7 Oldest Motorcycle You've Owned
Last Post: scooby
Posted On: 5 Hours Ago
Replies: 91
Views: 5,928
0 Sportsterpedia Progress
Last Post: Hippysmack
Posted On: 5 Hours Ago
Replies: 295
Views: 73,366
0 Hottie of the day, no nudity.
Last Post: trainman
Posted On: 5 Hours Ago
Replies: 16,191
Views: 1,574,391
0 `83 XLX rebuid and questions thread
Last Post: ryder rick
Posted On: 7 Hours Ago
Replies: 241
Views: 21,285
0 Roads I'd like to ride.
Last Post: Stairman
Posted On: 7 Hours Ago
Replies: 2,751
Views: 239,381
0 oil feed line between pump and filter
Last Post: Hippysmack
Posted On: 7 Hours Ago
Replies: 36
Views: 1,191
0 Friction modifiers in gasoline
Last Post: bustert
Posted On: 8 Hours Ago
Replies: 14
Views: 2,220
0 3.3 gallon looking tank that's 4.5 gallon or more
Last Post: sglock45
Posted On: 8 Hours Ago
Replies: 13
Views: 379
0 You asked for it! "The Tess' Coffee Thread"
Last Post: Flame__
Posted On: 9 Hours Ago
Replies: 10,968
Views: 940,028
0 Trackiing/data mining tactics.
Last Post: Dan78
Posted On: 9 Hours Ago
Replies: 4
Views: 268
More...
Members Birthdays
steve yorke (62), edman (54), Hudsonator (52), kozman32 (52), R3DN3X (50), gmcsid (49), mitch (44), Txngrg87 (33), Gotenfan (30)
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #11  
Old 3 Weeks Ago
farmall farmall is offline
Master Mechanic
 
Join Date: Jul 2013
Posts: 264
Sportster/Buell Model: XLH
Sportster/Buell Year: 73
Reputation: 458397
farmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond repute
Default

Quote:
Originally Posted by JacksBrother View Post
If you're looking for a front end, you might want to consider 2000- 2003 lower legs. I put a set of 2003 lowers on my '98-- that way I can run a Dyna front caliper (huge improvement over stock front brakes). I had no issues with swapping the front wheel and 3/4" axle, the only trick was re-spacing the wheel. I think that the 39mm fork tubes are going to be stiffer and more solid-feeling than your stock fork.
Good luck,
Joe
^^What he said^^
I thoroughly dislike the 35mm forks even in good shape. If you buy a first gen front end cheap you can run an adapter for the later calipers so I wouldn't pay too much for a later fork set, but I'd prefer it because the adapters aren't quite as purty.

I have four of this style adapter. They work fine (as they should since it's a hunk of plate with bolts and spacers).

https://www.amazon.com/Caliper-Adapt...3CG0JRHJCVZXE9

There are lots of 39mm choices:

While my Evos (Sportsters and FXRs) are first generation 39mm dual disc because I got the complete front ends cheap, if you're starting fresh and your wallet isn't affected by a multiple Harley addiction I'd go for the later sliders. You can also adapt the later calipers to first generation 39mm lowers if you don't mind the adapter, but you're starting fresh and single disc front ends are plentiful.

You can convert plentiful single disc front ends to dual by buying the other slider, and takeoff calipers from dual disc baggers are plentiful.

Stock early single piston HD calipers aren't very good even in pairs so I've no use for them on any bike I'm keeping.

Aftermarket caliper brackets to run inexpensive, effective sport bike calipers are available from Fab Kevin and others. You can never have too much brake so long as it is controllable and Harleys aren't light.

Braided stainless lines resist expansion and all my bikes get them to improve feel and reduce wasted lever motion.

Check the Sportsterpedia fork section for excellent detailed info.

Unless you are short I'd prefer the longest stock tubes. I just bought a pair of Trackerdie dampers and they're well made and longer than my FXRT parts. You don't have to run them unlesss you want the extra travel so don't buy immediately. It's worth knowing they exist.

I'd rather have any 39mm front end than any 35mm front end.
Reply With Quote
  #12  
Old 3 Weeks Ago
Racepres's Avatar
Racepres Racepres is offline
Senior Custom Bike Builder
 
Join Date: May 2013
Location: Middle O the Mitten
Posts: 2,936
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1977
Reputation: 52661
Racepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to behold
Default

And from experience with both...
on the surface the larger [39] seems stiffer... must be right??? until you check the wall thickness... now all ya get is the slight advantage of a larger circle... and while that is good... running side by side... the 35 with a good Brace whips any 39 except maybe with a brace... that is one side by side I have not done!!!
Both without a brace???? gonna be hard pressed to really identify a true difference...again owing to the thinner walls on the 39..
Reply With Quote
  #13  
Old 3 Weeks Ago
farmall farmall is offline
Master Mechanic
 
Join Date: Jul 2013
Posts: 264
Sportster/Buell Model: XLH
Sportster/Buell Year: 73
Reputation: 458397
farmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond reputefarmall has a reputation beyond repute
Default

Braces are always a good idea, and of course the 39mm beats the 35 hands down in caliper options.There are a lot of bikers who are happy with a drum or a spool too but I'm not one of them. While my Screaming Chicken style brace is basically decorative (weak, poor leverage) if I were energetic enough I'd fab the classic "two round bar U's and fender bracket mounting plate" style popular in '70s superbike racing. They don't sell (except to the BMW crowd) because they're ugly.

The functional ideal would be trash conventional forks and run a modern USD sportbike fork but those are often more expensive then the motorcycle and at some point tossing the fossil for a sporting motorcycle will become reasonable.

USD forks look bizarre on older Harleys since the point of owning an otherwise obsolete, underpowered (unless the cost of a modern sportbike is spent changing that) motorbike is enjoying them for what they are, like a fabric-skinned aircraft. It's like owning vintage Britbikes, it's not for how they objectively perform.
Reply With Quote
  #14  
Old 3 Weeks Ago
Racepres's Avatar
Racepres Racepres is offline
Senior Custom Bike Builder
 
Join Date: May 2013
Location: Middle O the Mitten
Posts: 2,936
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1977
Reputation: 52661
Racepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to behold
Default

Quote:
Originally Posted by farmall View Post
Braces are always a good idea, and of course the 39mm beats the 35 hands down in caliper options.There are a lot of bikers who are happy with a drum or a spool too but I'm not one of them. While my Screaming Chicken style brace is basically decorative (weak, poor leverage) if I were energetic enough I'd fab the classic "two round bar U's and fender bracket mounting plate" style popular in '70s superbike racing. They don't sell (except to the BMW crowd) because they're ugly.

The functional ideal would be trash conventional forks and run a modern USD sportbike fork but those are often more expensive then the motorcycle and at some point tossing the fossil for a sporting motorcycle will become reasonable.

USD forks look bizarre on older Harleys since the point of owning an otherwise obsolete, underpowered (unless the cost of a modern sportbike is spent changing that) motorbike is enjoying them for what they are, like a fabric-skinned aircraft. It's like owning vintage Britbikes, it's not for how they objectively perform.
Now... On all of that... we agree
but I cannot speak of Sport Bikes...as I never Rode one... last metric bike I rode was a UJM....late '70's
Reply With Quote
  #15  
Old 3 Weeks Ago
MkC MkC is offline
Biker
 
Join Date: Jun 2019
Posts: 18
Sportster/Buell Model: XLH
Sportster/Buell Year: 1986
Reputation: 10
MkC is an unknown quantity at this point
Default

Thanks for all the ideas. Now, assuming I'm looking for the best potential for handling while staying within the boundaries of (mostly) bolt-on H-D parts, let's see if I've got this straight: I should look for 39mm triple trees and forks from an early 90s Sportster, and lower fork legs an early 2000s sportster with dual discs. This will allow use of sportster or Dyna calipers. This will require use of a newer front wheel I assume (mine is stock 19" cast 9-spoke). In addition I should find a good fork brace.

Questions:
1) Can I add a disc to my stock wheel for use with a dual disc conversion or will it be necessary / cheaper to just find a later model cast wheel with dual discs already on it?
2) Any reccomendations for a good fork brace?
3) Can I use my current master cylinder in a dual disc conversion? I currently have a master cylinder from a 2008 XL1200C.
4) Any reccomendations for fork spring/cartridge upgrade while I have all this apart?

Thanks again!
Reply With Quote
  #16  
Old 3 Weeks Ago
JacksBrother's Avatar
JacksBrother JacksBrother is offline
XL FORUM TEAM MEMBER
 
Join Date: May 2010
Posts: 413
Sportster/Buell Model: XL1200
Sportster/Buell Year: 1998
Other Motorcycle Model: Harley Davidson FLH
Other Motorcycle Year: 1973
Reputation: 108165
JacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud ofJacksBrother has much to be proud of
Default

Hmmm. I didn't know you wanted dual disks. Does your stock wheel have the threaded bolt-holes on the right side? If so, you can add another disk on the right-hand side of your stock wheel. If the front axle is 3/4", You should be okay to run your original wheel. I'd be remiss not to question the need for duals to improve handling. Most people I know who run them just want 'em because they look cooler. If one disk will lock the front wheel, I don't know if another disk is going to be much of an improvement over a single. If you get a set of 2000 -- 2003 lower legs, (or use an adapter) you have a lot of improved choices for MUCH better braking options. Finding the elusive right-hand early 2000's lower dual-disk fork lower leg might not be as easy as you think-- a lot of people want them for the "look".
Replacing the lower legs that have "slop" in them, changing over to the 39mm forks & triple-tree, and upgrading the brake-- all of this should make a noticeable improvement in handling. You might want to look at Progressive front fork springs, they have a big following.
Hope that some of this helps.
Good luck,
Joe
Reply With Quote
  #17  
Old 3 Weeks Ago
JackFrost71 JackFrost71 is offline
Harley Engineer
 
Join Date: Jun 2009
Posts: 335
Sportster/Buell Model: XLH
Sportster/Buell Year: 1995
Sportster/Buell Model #2: Help S3T
Sportster/Buell Year #2: 2000
Reputation: 224
JackFrost71 is on a distinguished roadJackFrost71 is on a distinguished roadJackFrost71 is on a distinguished road
Default

I think the easiest route for you would be to go for any pre 2000 front end, add the stainless brake lines and keep your original wheel. You can do the brace, different springs etc. as you go along.

Might want to read the suspension thread and see what sounds good for your riding style before you start throwing expensive parts at it.
Reply With Quote
  #18  
Old 3 Weeks Ago
MkC MkC is offline
Biker
 
Join Date: Jun 2019
Posts: 18
Sportster/Buell Model: XLH
Sportster/Buell Year: 1986
Reputation: 10
MkC is an unknown quantity at this point
Default

Quote:
Originally Posted by JacksBrother View Post
Hmmm. I didn't know you wanted dual disks. Does your stock wheel have the threaded bolt-holes on the right side? If so, you can add another disk on the right-hand side of your stock wheel. If the front axle is 3/4", You should be okay to run your original wheel. I'd be remiss not to question the need for duals to improve handling. Most people I know who run them just want 'em because they look cooler. If one disk will lock the front wheel, I don't know if another disk is going to be much of an improvement over a single. If you get a set of 2000 -- 2003 lower legs, (or use an adapter) you have a lot of improved choices for MUCH better braking options. Finding the elusive right-hand early 2000's lower dual-disk fork lower leg might not be as easy as you think-- a lot of people want them for the "look".
Replacing the lower legs that have "slop" in them, changing over to the 39mm forks & triple-tree, and upgrading the brake-- all of this should make a noticeable improvement in handling. You might want to look at Progressive front fork springs, they have a big following.
Hope that some of this helps.
Good luck,
Joe
Honestly I might be getting a bit carried away. Another poster mentioned dual disc and I thought "why not". Really I just want to get a bike that's stable at all speeds it capable of attaining and be as sure footed in the corners as possible given the limitations of an '86 Sportster chassis. Before I put new tires on her she nearly slid out from under me in a hard corner (old, hard rubber can be a killer). I don't want to have that feeling ever again if I can help it.
Reply With Quote
Sponsored Links
  #19  
Old 3 Weeks Ago
Bluto Bluto is online now
Know It All
 
Join Date: Jan 2018
Location: California
Posts: 171
Sportster/Buell Model: XL1200R
Sportster/Buell Year: 2008
Reputation: 731139
Bluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond reputeBluto has a reputation beyond repute
Default

FWIW dual discs are about much more than braking power...since each one only works about have as hard there is about half as much heat in each so they are much less susceptible to heat related fade when riding and braking hard, like say on a twisty road. However a second disc and caliper does add weight (and unsprung weight at that) so there is a downside, whether it is worthwhile or not depends on how and where you ride.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Sponsored Links
All times are GMT +1. The time now is 00:16.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC