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PostPosted: Fri Sep 06, 2013 4:36 pm 
Retro Guru

Joined: Sat Jul 14, 2012 8:23 pm
Posts: 973
Location: Kent, UK
.... within a Shimano SIS set-up?

I've been running a 7 speed Sachs Maillard Aris (the all silver one) freewheel on my Bullseye hubs for more than 20 years, and it's run perfectly with an M900 XTR rear mech, and M730 XT 7 speed Thumbshifters.

I was considering going for an 8 cog version of the exact same freewheel, within this exact set-up, with the aim of using the hidden 8th click in the thumbies to make it 8 speed on the Bullseye's. Has anyone ever run one of these Sachs Maillard freewheels in this sort of set-up and had the experience of shifting compatibility with thumbies?

I have to say, that my 7 speed set-up works faultlessly - shifts under honking load without issue and is extremely accurate. Am logically hopeful that it would be fine - but would be really glad to hear if anyone's already running anything similar?

Many thanks


Last edited by rjsdavis on Thu Oct 24, 2013 12:34 am, edited 1 time in total.

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PostPosted: Fri Sep 06, 2013 5:56 pm 
retrobike rider
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Joined: Sun Feb 19, 2012 10:08 am
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Location: Nth Somerset, UK
I've used a seven speed Sachs freewheel with Shimano XT mechs and Gripshift shifters since 94.

I can't see any reason why the eight speed freewheel won't work, provided the thumbies will move the rear mech far enough.


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PostPosted: Fri Sep 06, 2013 6:36 pm 
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NeilM wrote:
I've used a seven speed Sachs freewheel with Shimano XT mechs and Gripshift shifters since 94.

I can't see any reason why the eight speed freewheel won't work, provided the thumbies will move the rear mech far enough.


Thanks Neil - whilst I'm glad you agree with my logic, would be extremely grateful to hear if anyone has actually run or got a set up like this and knows for sure? These freewheels are too pricey on Ebay to take a flyer on it....


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PostPosted: Mon Oct 21, 2013 1:21 am 
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Location: Kent, UK
Has anyone tried this?


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PostPosted: Mon Oct 21, 2013 5:03 pm 
Gold Trader
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Joined: Wed Jun 20, 2007 11:19 pm
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Won't be space on the right side of the hub for it.

Plus the extra cog means more likelihood of bending the axle. So wouldn't myself...


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PostPosted: Mon Oct 21, 2013 7:41 pm 
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Location: Kent, UK
dbmtb wrote:
Won't be space on the right side of the hub for it.

Plus the extra cog means more likelihood of bending the axle. So wouldn't myself...


Are they significantly wider than the 7 speed freewheels then?

I had figured that they would still fit onto a 135mm width rear hub n'est pas?


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PostPosted: Mon Oct 21, 2013 7:44 pm 
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Joined: Tue Dec 21, 2010 6:31 pm
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+1 on the bent axle. I bought a bike with an 8 speed freewheel and when I took it apart the rear axle had broken. A common problem with 8 speed freewheels according to Saint Sheldon....


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PostPosted: Mon Oct 21, 2013 8:16 pm 
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Location: Kent, UK
Johnsqual wrote:
+1 on the bent axle. I bought a bike with an 8 speed freewheel and when I took it apart the rear axle had broken. A common problem with 8 speed freewheels according to Saint Sheldon....


Okey dokey - doesn't seem like something to go for!

Why is this the case, IF, the freewheels were almost the same width? It is an "if" though... I don't quite see why the jump to 8 speed freewheels kills hubs as seems to be the case?


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PostPosted: Mon Oct 21, 2013 8:39 pm 
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It seems that the difference in spacing was (just) enough to put enough extra strain on the axle to bend or even break it.


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PostPosted: Tue Oct 22, 2013 5:55 pm 
Old School Hero

Joined: Fri Aug 24, 2012 1:35 pm
Posts: 166
Location: Madison, WI USA
Yes, I've done it lots...with Bullseye hub, Nuke Proof hub, Ringle hub, Sampson hub and Suntour hub. It will fit fine.

I rode those wheels for years without issue and the Ringle and Sampson are still in the stable but haven't been used regularly for years.

FYI, Sachs freewheels come in different cog spacings. Floating derailleur pullies usually make up for this but I had a friend that never could get his shifting acceptable using a Campy spaced freewheel with XT shifters.


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