The Sportster and Buell Motorcycle Forum Cruiser Customizing  

Go Back   The Sportster and Buell Motorcycle Forum > SPORTSTER MOTORCYCLE ZONE > Sportster Motorcycle Drivetrain > Sportster Motorcycle Transmission, Clutch, Primary & Secondary Drive
XLF Gallery XLF Classifieds XLF Blogs XLF Shout XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Sportster Motorcycle Transmission, Clutch, Primary & Secondary Drive Transmission, Clutch and primary or secondary drive problems, advice, and/or how tos.

Members Birthdays
Gennyred (64), Spatialanomaly (60), ColinB (54), HD1000XL (49), tub531
Energy One Clutches
Foxcreek Leather
Energy One Clutches
Motor Stage

Fix My Hog
Reply
 
Share Thread Tools Display Modes
  #1  
Old 3rd October 2006
reindeer's Avatar
reindeer reindeer is offline
Biker
 
Join Date: Aug 2006
Posts: 12
Sportster/Buell Model: xl 883/1200 conversion se
Sportster/Buell Year: 1990
Other Motorcycle Model: yamaha yz 450f
Other Motorcycle Year: 05
reindeer has disabled reputation
Default taller gear

I have an 90 model 883/1200 conversion. It's chain driven w/a 4-speed tranny.The little pig is very hot thru the 1/4, but the vibration at high crusing speeds is brutal(70 to 80). From the plant it rolled 21t in the front and 49t rear. I went to 50t rear about a year ago ,and it helped a bit without losing lowend pull. I just bought a 22t for the front hoping it will solve this issue,but I was considering 22t & 51t . I assume I will have to buy a longer chain as well. Has anyone ran this gear? I can afford to lose a bit of low end.I built the bike as a barhopper/worktruck,but I like to make local runs & rallies.Any useful info?
Reply With Quote
  #2  
Old 3rd October 2006
decman decman is offline
Post no Avatars!
 
Join Date: Jan 2005
Location: Dubois, WY
Posts: 3,076
Sportster/Buell Model: 1200S
Sportster/Buell Year: 2001
Sportster/Buell Model #2: XLCH
Sportster/Buell Year #2: 1972
Other Motorcycle Model: XLH-883D
Other Motorcycle Year: 1988
Reputation: 247631
decman has a brilliant futuredecman has a brilliant futuredecman has a brilliant futuredecman has a brilliant futuredecman has a brilliant futuredecman has a brilliant futuredecman has a brilliant futuredecman has a brilliant futuredecman has a brilliant futuredecman has a brilliant futuredecman has a brilliant future
Default

My 1988 came stock with 21T Front 48T Rear
I went to a 22T/46T combo, I like it a lot.
Less RPMs at higher MPH

Going to a 50 after a 49 should have made higher RPMs.
at any given speed. 51 would be worse.
Remember higher front and/or lower rear gets that
lower RPM I think you are looking for.
Reply With Quote
  #3  
Old 3rd October 2006
Kentucky Kentucky is offline
Senior Chief Know It All 1st Class
 
Join Date: Jul 2006
Location: The Sticks
Posts: 1,150
Sportster/Buell Model: XL1200RSC Roadster
Sportster/Buell Year: 2004
Sportster/Buell Model #2: DT400B
Sportster/Buell Year #2: 76
Other Motorcycle Model: 04-FZ6, 06-350 Wolverine,
Kentucky has disabled reputation
Default

52x23= 2.26
51x22= 2.31
49x21= 2.33
52x22= 2.36
50x21= 2.38
52x21= 2.42

Take your pick. The lower the ratio in number, the easier it will run at higher speeds. The higher the ratio, the better it will run at lower speeds in terms of pull.. Welcome to the forum....
__________________
Ride it like your ex wife's lawyer is on his way.......
Reply With Quote
  #4  
Old 3rd October 2006
Gone Gone is offline
Senior Chief Harley Engineer
 
Join Date: Nov 2004
Posts: 1,027
Gone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this pointGone is an unknown quantity at this point
Default

Reindeer,

Welcome to the XL Forum......


Harley
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


Custom Search

All times are GMT +1. The time now is 12:01.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
XL Forum - Linson Media LLC