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deemax rear hub issue

F

freeriding

Monkey
Jun 5, 2011
138
1
hallo. i have 2012 deemax ultimate wheelset.

I notice when I spin the rear wheel, it seems a bit draggy and it stops relatively fast (compared to another bike with a hope rear hub). (it is not the disc rotors cause i have them detached)

(if i remove the wheel, and spin in it in the opposite direction, then there is no drag, almost no friction, so i guess it has no bearing issue- furthermore the wheels are almost new)

(so with all the facts above, i guess it has to do with the freewheel when it is engaging)

is this just the way Deemax rear hubs run or should i do something, like putting some mineral oil in the freewheel?
 
Last edited:
jonKranked

jonKranked

Detective Dookie
Nov 10, 2005
85,920
24,497
media blackout
i had a set of dee trak wheels years ago, similar issue. freehub drag. i could never get it properly adjusted, and broke a few deraillers in the process. eventually i just cut the sh*tty mavic hubs out and laced the rims to hadleys.
 
Dogboy

Dogboy

Turbo Monkey
Apr 12, 2004
3,209
584
Durham, NC
A 2012 Deemax should have Mavic's ITS-4 freehub which is light years better than their older/cheaper hubs. Sounds like an adjustment issue to me.
 
Bikerpunk241

Bikerpunk241

Monkey
Sep 28, 2001
765
0
Pull off the freehub body, clean it out, and re-lube it with mineral oil.... Make sure to get some on the main seal too, that should help a lot. Mavic freehub bodies require a lot of attention.
 
Dogboy

Dogboy

Turbo Monkey
Apr 12, 2004
3,209
584
Durham, NC
Also, take a look at this video to see how the hub works -
If I had to guess what was going on I'd say it has to do with bearing preload. I would back off the bearing preload ring on the non-drive side and make sure the axle is locked together properly (cone wrench on either end of the axle) and then re-adjust the bearing preload as per the video.
 
F

freeriding

Monkey
Jun 5, 2011
138
1
Dogboy said:
Also, take a look at this video to see how the hub works -
If I had to guess what was going on I'd say it has to do with bearing preload. I would back off the bearing preload ring on the non-drive side and make sure the axle is locked together properly (cone wrench on either end of the axle) and then re-adjust the bearing preload as per the video.
Click to expand...

so you guess the preload is too much? it may be :)

1. when adjusting the preload, the video indicates to stop when contact happens. what does this mean?

2. if i put very little preload, then it will spin almost friction free? is there any danger in little preload?
 
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