Surly stainless chainrings seem softer than alloy
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Surly stainless chainrings seem softer than alloy
Postby wqlava1 » Thu Nov 22, 2012 12:39 am
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Re: Surly stainless chainrings seem softer than alloy
Postby wqlava1 » Thu Nov 22, 2012 10:01 am
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Re: Surly stainless chainrings seem softer than alloy
Postby rifraf » Sun Mar 03, 2013 4:13 pm
Is your MTB 26 or 29er? Maybe worth considering is a reversible Thorn 110mm bcd 5 hole ring.
These are available from http://www.sjscycles.co.uk/110-bcd-5-ar ... pt724_pg1/" onclick="window.open(this.href);return false;
Like the Rohloff chainring the Thorn front ring is reversible for a longer life.
You sound like you prefer much higher gearing than I do. Is it pretty flat where you ride?
The 29er I'm building with have Rohloff's 16T at rear and 34T at front.
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Re: Surly stainless chainrings seem softer than alloy
Postby HappyHumber » Sun Mar 03, 2013 7:48 pm
Re-reading the OP.. I guess at least you can bend & then unbend stainless... Aluminium once bent will never straigthen... well.. safely anyway.
Hit me up via the BNA dm; I'll get an alert. If y'know, you know.
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Re: Surly stainless chainrings seem softer than alloy
Postby il padrone » Sun Mar 03, 2013 8:41 pm
"An unjustified and unethical imposition on a healthy activity."
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Re: Surly stainless chainrings seem softer than alloy
Postby HappyHumber » Sun Mar 03, 2013 10:41 pm
Just pulled off the well worn original pressed steel (ie. non replaceable rings) cranks... and the &%$*# things are Octalink. Typically healthy BB
Back to scrounging something else crank wise.
Hit me up via the BNA dm; I'll get an alert. If y'know, you know.
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Re: Surly stainless chainrings seem softer than alloy
Postby wqlava1 » Sun Mar 03, 2013 11:35 pm
I've been very slack, and still have the straightened Surly SS ring on there. For being straightened by the light of a few AyUps with a small pair of pliers, it's a fantastic job. (Thanks again to whoever it was from Commuter Cycles!) I went and chased up an alloy 42T 110 ring secondhand but little used from the LBS, but the lack of any noise or visible deviation makes it hard for me to justify the time to change yet. I'll get out the magnetic base and needle gauge when next building a wheel and mount it on the frame to check the runout out of interest.rifraf wrote:Where have you got to with regards to a solution? Have you found a suitable chainring yet?
Is your MTB 26 or 29er? Maybe worth considering is a reversible Thorn 110mm bcd 5 hole ring.
These are available from http://www.sjscycles.co.uk/110-bcd-5-ar ... pt724_pg1/" onclick="window.open(this.href);return false;
Like the Rohloff chainring the Thorn front ring is reversible for a longer life.
You sound like you prefer much higher gearing than I do. Is it pretty flat where you ride?
The 29er I'm building with have Rohloff's 16T at rear and 34T at front.
It is not a MTB. It is a Velosmith tourer, with Rohloff sliding dropouts but somewhere in tube specification a little lighter than the Jota on Tim Stredwick's website. It currently has the ugliest mount of the shifter (on an angled accessory T-bar off the stem) that I have ever seen, though I have a beautifully made Gilles Berthoud shifter on a Velo Orange rando bar sitting here waiting to tidy things up. I'll take photos and write a bit after I get it to a less embarrassing state.
I think I could probably reverse the SS Surly ring.
Even with 42/16 driving the Rohloff hub I will still have some pretty low gears. I think the current 40/16 is right on the limit for my weight with the Rohloff warranty - unless I lose a few hundred grams more riding some more hills.
No, it's not really flat where I ride. Usually out somewhere in the arc from Lilydale around to Whittlesea starting in Eltham, with regular forays towards the city. Sometimes riding based in Apollo Bay or Woods Point (where we have cabins).
You'd want to be pretty light to be running 34/16 and Rohloff and avoiding warranty problems. Rifraf I think posted something about that recently.
viewtopic.php?f=77&t=59772" onclick="window.open(this.href);return false;
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Re: Surly stainless chainrings seem softer than alloy
Postby rifraf » Wed Mar 27, 2013 11:19 pm
Rohloff revised their ratios and now a combo of 34/16T is within limits as long as rider is below 100kgs from memory.wqlava1 wrote:
You'd want to be pretty light to be running 34/16 and Rohloff and avoiding warranty problems. Rifraf I think posted something about that recently.
viewtopic.php?f=77&t=59772" onclick="window.open(this.href);return false;
My current build project has a 38T but will be swapped out to 34 before I go riding anywhere loaded.
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Re: Surly stainless chainrings seem softer than alloy
Postby rifraf » Fri Jun 07, 2013 1:10 am
I'm surprised it doesnt feel lower geared than it does but I'm now hauling big 700c hoops with 2.35 Big Apple tyres which are ponderous compared to my Moultons 20 inch wheels.
Slowly getting the feel for it. Damn glad I invested in the 34T ring, thats for sure.
Shes fairly undulating around where I'm staying so the lower gears are getting a good workout.
Hi Kym,HappyHumber wrote:Arrgh dammit....
Just pulled off the well worn original pressed steel (ie. non replaceable rings) cranks... and the &%$*# things are Octalink. Typically healthy BB
Back to scrounging something else crank wise.
What dont you like about octalink?
Is there no way you can mount some new rings on the cranks? What are they? Big rivets?
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Re: Surly stainless chainrings seem softer than alloy
Postby HappyHumber » Fri Jun 07, 2013 12:42 pm
Nothing against Octalink per se. It's just that it's now a dying, niche standard. Sure spares can still be got, for now, if you're willing to scrounge/wait etc.rifraf wrote:What dont you like about octalink?
Is there no way you can mount some new rings on the cranks? What are they? Big rivets?
The cranks are the sub-Deore, (FC-M4xx I think) pressed steel cheapies. Each ring plate is spot welded, if not rivetted to the other. Maybe if the middle ring was a bit less worn and these were square taper cranks I'd be willing to get creative with the angle grinder.
Even though this SS MTB will be a relatively thrifty build, I have priced all new Hollowtech II Deore sets, which include new replaceable rings as well as a whole new BB for just a smidge over the free postage threshold from Wiggle/c r c et al. Even if I get bored with the bike after a bit - at least these parts will be still servicable or sellable elsewhere.
Hit me up via the BNA dm; I'll get an alert. If y'know, you know.
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Re: Surly stainless chainrings seem softer than alloy
Postby rkelsen » Fri Jun 07, 2013 1:25 pm
The fact you were still using it after 5 months speaks volumes to me. There's no way you'd be able to ride an alloy one for that long after straightening it.wqlava1 wrote:I've been very slack, and still have the straightened Surly SS ring on there.
...
I think I could probably reverse the SS Surly ring.
Wombats can do a lot of damage. They're powerful animals.
Not sure if I believe that!wqlava1 wrote:With me stopped, and the wombat about 2 metres away, he turned & growled at me, the first noise of the encounter.
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Re: Surly stainless chainrings seem softer than alloy
Postby rifraf » Fri Jun 07, 2013 2:23 pm
I spotted these on gumtree yesterday:HappyHumber wrote:Nothing against Octalink per se. It's just that it's now a dying, niche standard. Sure spares can still be got, for now, if you're willing to scrounge/wait etc.rifraf wrote:What dont you like about octalink?
Is there no way you can mount some new rings on the cranks? What are they? Big rivets?
The cranks are the sub-Deore, (FC-M4xx I think) pressed steel cheapies. Each ring plate is spot welded, if not rivetted to the other. Maybe if the middle ring was a bit less worn and these were square taper cranks I'd be willing to get creative with the angle grinder.
Even though this SS MTB will be a relatively thrifty build, I have priced all new Hollowtech II Deore sets, which include new replaceable rings as well as a whole new BB for just a smidge over the free postage threshold from Wiggle/c r c et al. Even if I get bored with the bike after a bit - at least these parts will be still servicable or sellable elsewhere.
http://www.gumtree.com.au/s-ad/stirling ... 1021063598" onclick="window.open(this.href);return false;
and thought of you.
Wasnt sure if you'd ordered or not yet or even if they were suitable.
Watch him with the bcd as I see he's written they are 110 and then in another breath 130mm.
When are we going to see your bike collection? Where are the pics?
Hope your enjoying your Brooks.
I was missing my B73 but have just fallen in love with my new Flyer Special on the Ogre.
I grabbed a B17 Special to replace the Moultons Swift which is better than the Swift but the Flyer is the
kind of revelation that the B73 was when I got it.
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Re: Surly stainless chainrings seem softer than alloy
Postby Wingnut » Mon Jan 20, 2014 8:17 pm
The 36t is for use when touring fully loaded, otherwise I'm currently using a 42t Blackspire downhill ring for commuting...I think a 38t would have been fine but Surly don't make them in 104BCD...
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Re: Surly stainless chainrings seem softer than alloy
Postby rifraf » Mon Jan 20, 2014 8:52 pm
Using Sheldons calculator and typing in 36T and 16T/Rohloff for 26x2.1 tyres I end up with 16.3 gear inches to 85.6gi.Wingnut wrote:I've just ordered a 36t Surly ring to match my 16t on the Rohloff, I like the idea I can flip the ring when it's worn...
The 36t is for use when touring fully loaded, otherwise I'm currently using a 42t Blackspire downhill ring for commuting...I think a 38t would have been fine but Surly don't make them in 104BCD...
For me those figures sound ideal.
A lot seem to like higher, but I hate to get off the bike to push and dont mind a high cadence if it keeps me moving forward.
Low enough to crawl up a wall at one end and high enough to keep pedaling down most tarmac inclines should you wish to bother (I tend to coast).
Sounds great and I only wish that could be easily accomplished with 700c hoops.
http://www.sheldonbrown.com/gears/" onclick="window.open(this.href);return false;
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Re: Surly stainless chainrings seem softer than alloy
Postby Wingnut » Mon Feb 10, 2014 5:30 pm
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