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PostPosted: Thu Mar 26, 2015 9:52 am 
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Joined: Thu Apr 11, 2013 2:15 am
Posts: 44
Presently, I have a SL-K light chainset installed with mid-compact FSA rings. I haven't found it lacking in stiffness or shift quality. My other points of reference would be an FSA Omega (Relatively speaking, an anchor, nowhere near as nice, lacks stiffness and shifting a bit clunky) and a 5800 105 set (quite nice, shifts very well). I have weighed the crank at 590g excluding bearings.

I have the opportunity to buy a SISL2 crank for £300, give or take. I don't think the weight advantage is huge for that money, and SpideRings don't come in mid compact, so I'd be using the same FSA rings or something similar instead. Basically, is it worth it?


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PostPosted: Thu Mar 26, 2015 8:21 pm 
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Joined: Mon Mar 14, 2011 10:59 am
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Location: Oxfordshire UK
150grams savings for £300, I've done worse :)

I would say keep the SL-K light and spend the money elsewhere to be honest, unless you've done everything else already

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Posted: Thu Mar 26, 2015 8:21 pm 


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PostPosted: Thu Mar 26, 2015 8:48 pm 
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Location: Bremerton, WA
If you can't use the spiderring, I'd stick with what you've got.

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PostPosted: Thu Mar 26, 2015 9:11 pm 
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I had the weight difference nearer 70g myself, given I wouldn't be using a spidering, and the 400-odd weight figure given for the SiSL2 excludes the axle. At that point it seems a better idea to change the 250g saddle for weight saving.


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PostPosted: Fri Mar 27, 2015 2:30 am 
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Location: Mississippi
I've ridden both and you'd never be able to tell the difference.....get some Praxis rings and spend the rest on some other light parts or fresh kit.

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PostPosted: Fri Mar 27, 2015 4:37 am 
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Joined: Fri Jul 23, 2004 8:24 pm
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Location: Houston, Texas
MisterMuncher wrote:
I have the opportunity to buy a SISL2 crank for £300, give or take.

Is your frame BB30 or PF30 bottom bracket? If not this is a non-starter as the SISL2 crank is BB30/PF30 and Will Not Fit anything else!

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PostPosted: Fri Mar 27, 2015 8:10 am 
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Joined: Mon Jan 13, 2014 7:26 am
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One of my bikes had slk-light with FSA. I replaced the crankset with SISL2 with compact spidering. The shifting is second to shimano DA (that is my favorite). Stiffness, light weight, shift quality make the hollowgram the winner. If you are not as big as I am (167lb), I do not know if you can tell the difference in stiffness, though.


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PostPosted: Fri Mar 27, 2015 9:18 am 
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But count in some extra tools for maintenance.


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PostPosted: Fri Mar 27, 2015 5:42 pm 
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Location: Los Angeles
Seems like a pretty good price for the hollowgram. When I bought my sisl crank I paid 700 usd. I too replaced the spider and went with praxis compact.


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PostPosted: Fri Mar 27, 2015 8:06 pm 
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Since no body is talking about aesthetics, I'd say the Hollowgram is the winner!


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PostPosted: Sun Mar 29, 2015 11:19 am 
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Thinking about making this change myself from an 2012ish sl-k light to sisl2. I haven't weighed it, but all in with rings it's somewhere in the 750g department. Reckon a 200g+ saving with the spiderings would be worth it. The sl-k is pretty stiff but I get noticeable flex and clicking when going for it uphill. The sisl2 is supposedly stiffer so...


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PostPosted: Sun Mar 29, 2015 12:01 pm 
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Joined: Fri Feb 01, 2013 12:56 am
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Location: England
Are the Hollowgram cranks pre-owned? Even if they are it's a good deal, especially if it includes bearings etc. If you're going to be using non-Cannondale rings you will need to buy a separate Hollowgram 5 arm spider (I don't know if that's even an option on SiSl2 cranks).


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PostPosted: Sun Mar 29, 2015 1:00 pm 
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Location: Athens, Greece
FSA are not great cranksets IME.

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PostPosted: Sun Mar 29, 2015 9:14 pm 
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lippythelion wrote:
Are the Hollowgram cranks pre-owned? Even if they are it's a good deal, especially if it includes bearings etc. If you're going to be using non-Cannondale rings you will need to buy a separate Hollowgram 5 arm spider (I don't know if that's even an option on SiSl2 cranks).


the sisl2 can take a 5 arm spider.

That way you can still get your mid compact by using praxis rings.


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PostPosted: Mon Mar 30, 2015 1:38 am 
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I switched from a SL-K to a Hollowgram SL. Probably the most noticeable upgrade I've ever had, after taking my first few pedal strokes on the Hollowgram, I was amazed at how much stiffer it was.

I also managed to flip the SL-K for a few $ more than I payed for the Hollowgram, so that was nice too. :D


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Posted: Mon Mar 30, 2015 1:38 am 


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