Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Shimano rear hub FH-M290 - 7-speed ONLY?

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Shimano rear hub FH-M290 - 7-speed ONLY?

Old 08-01-16, 04:57 PM
  #1  
tattman23
Senior Member
Thread Starter
 
Join Date: Aug 2014
Location: Chicago
Posts: 54

Bikes: Trek 7.4 FX, 80's Raleigh Pursuit 12-speed "Sport-Touring Geometry" with fully functional QuickStand, thanks Raleigh

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Shimano rear hub FH-M290 - 7-speed ONLY?

What's the fastest path to fitting an 8-speed cassette on a bike that currently sports a 7-speed cassette on a hub that's labeled Shimano FH-M290? Could it be as simple as a new cassette and freehub body? Early results are discouraging, as they make it seem that in order to upgrade the gearing to 8-speed for smaller transitions in the mid-gears, would take a whole different wheel - one that doesn't say FH-M290 on the hub.


The bike left the factory an 8x3, that's the funny part. By the time I acquired it, the lovely 11-32 SRAM stuff it probably was built with, had been replaced (unbeknownst to me til I got home with it) with the Shimano wheelset including 7x cassette.


This is all speculation/guesswork of course. I just have my doubts that an 8-speed freehub body would "just fit".

Advice & counsel kindly sought,
Tattman23
tattman23 is offline  
Old 08-01-16, 05:30 PM
  #2  
bikeman715
Senior Member
 
bikeman715's Avatar
 
Join Date: Mar 2008
Location: Salinas , Ca.
Posts: 2,646

Bikes: Bike Nashbar AL-1 ,Raligh M50 , Schwinn Traveler , and others

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 85 Post(s)
Liked 1 Time in 1 Post
yes you need to change out the freehub to a 8/9/10 . maybe redish the wheel if needed . going from 8 to 7 was a step backward .
bikeman715 is offline  
Old 08-01-16, 05:33 PM
  #3  
HillRider
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 32,910

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Mentioned: 38 Post(s)
Tagged: 0 Thread(s)
Quoted: 1691 Post(s)
Likes: 0
Liked 572 Times in 422 Posts
AFAIK, that hub will accept almost any other Shimano freehub body as it is bolted to the hub shell with the standard 10 mm hollow bolt so you can easily upgrade it to an 8/9/10-speed body. What you may also need is different cones and dust seals to match the replacement body.

The FH-M290 was an Accera level hub with a 7-speed freehub body but spaced 135 mm OLD. Updating it to 8-speed+ will require revising the spacer configuration and probably redishing the rim.
HillRider is offline  
Old 08-01-16, 06:21 PM
  #4  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 12,778

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 1371 Post(s)
Liked 602 Times in 450 Posts
You have to be aware that not all FH bodies are interchangeable. Some of the newer low end ones (like the RM-30) use a totally different spline interface.

What shifters does it currently have? IF 7 speed, just go to 9 speed shifters, chain & cassette.
9 speed cassettes come in a much wider array of combinations than 8 speed.
Price between 8 & 9 speed cassettes/shifters isn't that much different.
You would need a 9 speed chain.

I went from 7 to 8 to 9 speed and simply wish I hadn't bothered with 8.
Bill Kapaun is offline  
Old 08-01-16, 06:54 PM
  #5  
tattman23
Senior Member
Thread Starter
 
Join Date: Aug 2014
Location: Chicago
Posts: 54

Bikes: Trek 7.4 FX, 80's Raleigh Pursuit 12-speed "Sport-Touring Geometry" with fully functional QuickStand, thanks Raleigh

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Bill Kapaun View Post
You have to be aware that not all FH bodies are interchangeable. Some of the newer low end ones (like the RM-30) use a totally different spline interface.

What shifters does it currently have? IF 7 speed, just go to 9 speed shifters, chain & cassette.
9 speed cassettes come in a much wider array of combinations than 8 speed.
Price between 8 & 9 speed cassettes/shifters isn't that much different.
You would need a 9 speed chain.

I went from 7 to 8 to 9 speed and simply wish I hadn't bothered with 8.

Thanks all replies for the sage advice. The shifters are 8-speed. I had my fingers crossed that a well meaning bike fixer simply tossed the current 7-speed cassette on, adding spacers as needed, to the original wheel (either due to the factory components being trashed, or maybe they found a use for the stuff on a different bike <shrug>).


Maybe I'm wrong but - An additional rear wheel, with an 8-speed cassette mounted, would be preferable to re-dishing. Or, change shifters and a couple more drivetrain parts and jump to 9-speed per Bill K.
tattman23 is offline  
Old 08-01-16, 07:13 PM
  #6  
Bill Kapaun
Really Old Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Posts: 12,778

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.

Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 1371 Post(s)
Liked 602 Times in 450 Posts
To use the current hub, you would need the 8/9 speed body.
That body is something like 3-4mm longer, thus you would have to remove an equal amount of spacing on the NDS.
That means the wheel gets shifted to the NDS by that amount.
The RIM has to be dished back to the DS 1/2 that to recenter.
Due to spoke/hub geometry, most of that will be accomplished by loosening the NDS spokes noticeably more and a bit of tightening on the DS spokes.
That's not a problem for someone that builds wheels and has a spacer kit. (I do)
Now if this is an old wheel, with frozen nipples, it gets to be a total pain.
Bill Kapaun is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Andrija_
Bicycle Mechanics
2
04-22-17 08:52 AM
trail_monkey
Classic & Vintage
20
03-24-17 07:47 PM
heidibsmith
Classic & Vintage
6
07-16-16 09:40 PM
hj630
Bicycle Mechanics
5
07-13-14 07:49 PM
mudboy
Bicycle Mechanics
6
05-25-10 12:44 AM

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.