SI v SISL2

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logy
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by logy on Thu Apr 07, 2016 7:07 pm

Hi All

Is it worth swapping out an Si for an SISL2? Weight difference and stiffness?
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by Weenie on Thu Apr 07, 2016 7:07 pm


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Calnago
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by Calnago on Thu Apr 07, 2016 7:24 pm

Yes, but my reasoning has nothing to do with stiffness and/or weight and everything to do with the redesign. 109mm spindle on Sisl2 vs 104mm spindle on Sisl. Wavy washer is on the non-drive side versus drive side. Gone is the shoulder on the spindle which prevented getting a decent chainline for DA9000 to work as it was designed.
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jeffy
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by jeffy on Thu Apr 07, 2016 7:36 pm

I would think the newer Si cranks are perhaps 109mm. Or at least the one with BB30A 73mm shell?
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logy
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by logy on Thu Apr 07, 2016 7:50 pm

I have the 2016 Si on my Evo but am thinking of SiSl2..
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Calnago
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by Calnago on Thu Apr 07, 2016 7:55 pm

Actually then, I am not at all sure if the new Sisl's have a design change. I thought there was only Sisl and Sisl2, and that if it didn't say Sisl2 it was first generation stuff and had the 104mm spindle. I may be wrong there so I would check that out. I am going on my experience with a 2012 or so Hollowgram Sisl crank versus the newer Sisl2 Hollowgram crank.
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logy
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by logy on Thu Apr 07, 2016 9:15 pm

The si (not SL) is a lower spec version with an 8 arm spidering instead of 10. I can't find any references to weight differences. Mine don't look as if they are made in 2 parts and bonded like the sisl2.


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AZR3
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by AZR3 on Thu Apr 07, 2016 10:33 pm

The Si is an entry level spec 3D forged version, so not bonded like the SiSL/SiSL2
I've been researching hollowgram cranks as I just bought a Hi-MOD and these are the weights I've found posted online

Si-167-170g
SiSL-140g
SiSL2-124g
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Svetty
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by Svetty on Thu Apr 07, 2016 11:41 pm

You can just get a 109mm spindle for SiSL to get the benefit of SiSL2.....
Last edited by Svetty on Fri Apr 08, 2016 1:53 pm, edited 1 time in total.
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Calnago
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by Calnago on Fri Apr 08, 2016 12:21 am

Yeah, but try finding a 109mm spindle these days. And even then the newer profile of the cranks or spider or combo, (can't remember which) means that it ends up not quite "right" anyway. And I forgot what "not quite right" means exactly but may have something to do with q-factor or distance from center for each crank. Probably not a big deal. The hard part would be finding a 109mm spindle I think.
Or are they used in their other cranks now as well? If so, I'll pick one up for a friend of mine who could sure use one.
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AZR3
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by AZR3 on Fri Apr 08, 2016 12:25 am

One on eBay, bit higher than retail but not crazy high
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VTBike
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by VTBike on Fri Apr 08, 2016 2:30 pm

I have an almost new SiSL2 for sale in the classifieds :)... just sayin.
It is insane light. I wish I could keep using it.. just bought a new frame that's PF86.
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logy
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by logy on Sat Apr 09, 2016 12:39 pm

VTBike. Interested. More details please.


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AZR3
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by AZR3 on Sun Apr 10, 2016 1:15 am

Quick question for anyone who has installed a SiSL2 crankset. I just got mine off of eBay and I can't for the life of me get the spindle past the first bearing. The spindle doesn't go much past the splines into the bearing. I've tapped (ok, a little more than tapped lol) it with a rubber mallet and it hasn't budged. I'm assuming this is not normal?
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numbers505
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by numbers505 on Sun Apr 10, 2016 1:24 am

You can try putting the spindle in the freezer for a while.
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by Weenie on Sun Apr 10, 2016 1:24 am


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AZR3
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by AZR3 on Sun Apr 10, 2016 1:35 am

Ok, but my concern is that if that works for install how do I go about removing it if/when I need to?
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