help! new 12-36 cassette install, freehub binds
#1
Senior Member
Thread Starter
Join Date: Jul 2006
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
help! new 12-36 cassette install, freehub binds
Hi everyone,
I'm trying to replace a 9 speed, xtr m970 11-34 cassette on a DT Swiss hub with the new shimano 12-36 cassette. With the 11-34 cassette, all is well, with the 12-36 cassette on there, the freehub doesn't spin when I clamp it in the dropouts. Put the 11-34 back on, all is well again.
I'm fairly certain the new cassette is seated fully on the driveshell, and I've tried both loosening and tightening the new 12t lockring.
Anyone have any ideas for me? Thanks!!! :-)
I'm trying to replace a 9 speed, xtr m970 11-34 cassette on a DT Swiss hub with the new shimano 12-36 cassette. With the 11-34 cassette, all is well, with the 12-36 cassette on there, the freehub doesn't spin when I clamp it in the dropouts. Put the 11-34 back on, all is well again.
I'm fairly certain the new cassette is seated fully on the driveshell, and I've tried both loosening and tightening the new 12t lockring.
Anyone have any ideas for me? Thanks!!! :-)
#2
Senior Member
Join Date: May 2009
Location: Portland Oregon
Posts: 744
Bikes: '82 Giante super challange, 70 Gitane Tour de France, GT Gutterball
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Was the cassette intended for use with a washer on the spoke side?
#3
cab horn
Join Date: Jun 2004
Location: Toronto
Posts: 28,353
Bikes: 1987 Bianchi Campione
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 25 Times
in
18 Posts
Hi everyone,
I'm trying to replace a 9 speed, xtr m970 11-34 cassette on a DT Swiss hub with the new shimano 12-36 cassette. With the 11-34 cassette, all is well, with the 12-36 cassette on there, the freehub doesn't spin when I clamp it in the dropouts. Put the 11-34 back on, all is well again.
I'm fairly certain the new cassette is seated fully on the driveshell, and I've tried both loosening and tightening the new 12t lockring.
Anyone have any ideas for me? Thanks!!! :-)
I'm trying to replace a 9 speed, xtr m970 11-34 cassette on a DT Swiss hub with the new shimano 12-36 cassette. With the 11-34 cassette, all is well, with the 12-36 cassette on there, the freehub doesn't spin when I clamp it in the dropouts. Put the 11-34 back on, all is well again.
I'm fairly certain the new cassette is seated fully on the driveshell, and I've tried both loosening and tightening the new 12t lockring.
Anyone have any ideas for me? Thanks!!! :-)
#4
Senior Member
Thread Starter
Join Date: Jul 2006
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#5
Senior Member
Thread Starter
Join Date: Jul 2006
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
it does spin when not on the bike, however no, nothing is rubbing on the dropout, there's at least a few mm of clearance between the lockring and the dropout face.
#6
Senior Member
Thread Starter
Join Date: Jul 2006
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Even just barely tightening the wheel in the dropout produces a very noticeble stick in the freehub. I quadruple checked, at no point does the lockring contact the dropout, there's like 5mm of clearance...
#8
Senior Member
Thread Starter
Join Date: Jul 2006
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#10
Insane Bicycle Mechanic
Join Date: Mar 2008
Location: other Vancouver
Posts: 9,826
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 797 Post(s)
Liked 695 Times
in
372 Posts
Definitely something very, very strange going on here...
__________________
Jeff Wills
Comcast nuked my web page. It will return soon..
Jeff Wills
Comcast nuked my web page. It will return soon..
#12
Thrifty Bill
Join Date: Jan 2008
Location: Mountains of Western NC
Posts: 23,523
Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more
Mentioned: 96 Post(s)
Tagged: 0 Thread(s)
Quoted: 1236 Post(s)
Liked 964 Times
in
628 Posts
We are all guessing. Take some close up pictures of the two set ups.
#14
Senior Member
Join Date: Jul 2005
Posts: 7,487
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Liked 162 Times
in
89 Posts
The new 12-36 cassettes were introduced for 29" mountain bikes because of the big wheels' affect on gear inches. We have several new 29er mountain bikes in our shop that are equipped with the new 12-36 cassettes, but I've not yet removed one or installed one, so I don't know if you can put one on a standard freehub body or not. The specs say these cassettes require a special freehub body to use them, because of the extra torque they generate.
EDIT: reading some info in one of our catalogs, the FH-M629 is the hub that Shimano has introduced for these 12-36 cassettes.
EDIT: reading some info in one of our catalogs, the FH-M629 is the hub that Shimano has introduced for these 12-36 cassettes.
Last edited by well biked; 02-13-10 at 10:40 AM.
#16
Senior Member
Join Date: Jul 2005
Posts: 7,487
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Liked 162 Times
in
89 Posts
Here's a copy and paste from the QBP catalog regarding the Shimano 12-36 nine speed cassette. Interestingly, it implies that the cassette will fit on a conventional 9-speed Shimano compatible hub, but that perhaps the freehub won't hold up to the extra torque:
"Shimano HG61 9-Speed Cassettes.
FW6005
12-36t 29'er-specific cassettes must be used with either M529 (6-bolt) or M629 (centerlock) hubs, which are designed and manufactured specifically to withstand the extra torque load exerted by the 36t low gear
Use of the 12-36t cassettes with other hubs may result in hub-failure and may void warranty coverage"
"Shimano HG61 9-Speed Cassettes.
FW6005
12-36t 29'er-specific cassettes must be used with either M529 (6-bolt) or M629 (centerlock) hubs, which are designed and manufactured specifically to withstand the extra torque load exerted by the 36t low gear
Use of the 12-36t cassettes with other hubs may result in hub-failure and may void warranty coverage"
#17
Senior Member
Join Date: May 2009
Location: Portland Oregon
Posts: 744
Bikes: '82 Giante super challange, 70 Gitane Tour de France, GT Gutterball
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Here's a copy and paste from the QBP catalog regarding the Shimano 12-36 nine speed cassette. Interestingly, it implies that the cassette will fit on a conventional 9-speed Shimano compatible hub, but that perhaps the freehub won't hold up to the extra torque:
"Shimano HG61 9-Speed Cassettes.
FW6005
12-36t 29'er-specific cassettes must be used with either M529 (6-bolt) or M629 (centerlock) hubs, which are designed and manufactured specifically to withstand the extra torque load exerted by the 36t low gear
Use of the 12-36t cassettes with other hubs may result in hub-failure and may void warranty coverage"
"Shimano HG61 9-Speed Cassettes.
FW6005
12-36t 29'er-specific cassettes must be used with either M529 (6-bolt) or M629 (centerlock) hubs, which are designed and manufactured specifically to withstand the extra torque load exerted by the 36t low gear
Use of the 12-36t cassettes with other hubs may result in hub-failure and may void warranty coverage"
+1 for pictures
#18
Senior Member
Thread Starter
Join Date: Jul 2006
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Unless I'm hallucinating, nothing except the hub driveshell and the chain is touching the cassette. I'll post some pictures (or the hopefully, the solution) when I get back.
#19
Senior Member
Thread Starter
Join Date: Jul 2006
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Success! The lips of the three pins which hold the cassette together were touching the underside lip of the hubshell. A few seconds with the grinder and all is well! Thanks everyone!
#20
Senior Member
Join Date: Jul 2005
Posts: 7,487
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Liked 162 Times
in
89 Posts
If the freehub fails due to too much torque, I doubt it will be "gradual." More like instantly. My question is, honestly, how much of a concern is this. I hadn't really thought about it until this thread....Obviously, Shimano is trying to push their hubs, but........Personally, I've got a plenty-low granny gear with the 11-34 on my 29er-
#21
Senior Member
Join Date: May 2009
Location: Portland Oregon
Posts: 744
Bikes: '82 Giante super challange, 70 Gitane Tour de France, GT Gutterball
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
If the freehub fails due to too much torque, I doubt it will be "gradual." More like instantly. My question is, honestly, how much of a concern is this. I hadn't really thought about it until this thread....Obviously, Shimano is trying to push their hubs, but........Personally, I've got a plenty-low granny gear with the 11-34 on my 29er-
#22
Insane Bicycle Mechanic
Join Date: Mar 2008
Location: other Vancouver
Posts: 9,826
Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 797 Post(s)
Liked 695 Times
in
372 Posts
Those "pins" (they're actually threaded bolts) can be removed and thrown away. They don't do anything useful except keep the cogs together when you're putting them on the hub.
__________________
Jeff Wills
Comcast nuked my web page. It will return soon..
Jeff Wills
Comcast nuked my web page. It will return soon..
#23
Senior Member
Thread Starter
Join Date: Jul 2006
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#25
Bicycle Repair Man !!!
If the freehub fails due to too much torque, I doubt it will be "gradual." More like instantly. My question is, honestly, how much of a concern is this. I hadn't really thought about it until this thread....Obviously, Shimano is trying to push their hubs, but........Personally, I've got a plenty-low granny gear with the 11-34 on my 29er-