Recommend a frameset under £2k
Comments
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What are the seat tube angles on the Sportive you have at the moment and on the large Scuro? (I have the medium Scuro and I think that's 74.5 degrees).
What's your current saddle height, measured from centre of BB to top of saddle?
I'm 5'9" - 5'10" and have a medium Scuro. I have quite a long reach for my height and have a perfect fit with a 110mm stem.
Don't trust those online calculators, go by what you know from your current setup.0 -
According to Ribbles geometry chart its 73.07 degrees for the sportive. Large Scuro is 73.5 and medium 74.5 degrees as you said.
BB to top of saddle is just shy of 800mm, never had it under 790mm.0 -
So your current setup is 73 degrees seat tube, 57cm effective TT with 90mm stem, and it's a little stretched.
Large Scuro RS (73.5, 55cm TT) would be (rather approximately) 1.5cm shorter reach than your Sportive with the same sized stem, or 5mm shorter with a 100cm stem.
Medium Scuro (74.5, 53.5cm TT) would actually only be about 5mm shorter than that (i.e. 2cm shorter than your current setup with a 90cm stem and 1cm shorter with a 100cm stem). Roughly...
Wow, I never realised that the medium and large scuros actually have very similar reaches once angles are taken into account.
How do you find the head tube length on your current bike? Do you have lots of spacers or none, would you ever want to go higher or lower?
I think 80cm could be within the range of the Scuro RS medium seatpost length, but maybe only just... Best check. My saddle height is 73.5cm and I think the bit I hacked off could have been around 7cm... (I'd need to check...)0 -
Head tube length on current bike is a bit high to be honest, it came with 3 spacers under the stem and i've just never bothered getting it cut, but could easily go lower.
Right, so my current setup is a smidge under 80cm. Thats 55cm from the seat tube, about 19cm of seatpost showing and then from the top of seatpost itself(not from the top of the clamp) to saddle is the remaining 6cm.
Says on geometry for the Scuro that seatpost size for M is 73cm and 75cm for the L. So i'm taking that as leaving me slightly short if i go for the M? Although i don't know what difference the clamp on the ISP will make, if any?0 -
Do you mean it's a bit high WITH the 3 spacers? And does it also have one of those extended headset top caps? (the Scuro does). You could still go quite a bit lower on your current setup by removing the spacers. The large Scuro has a headtube about the same height (well, 2mm shorter), while the medium is getting on for 3cm shorter than your current setup.Head tube length on current bike is a bit high to be honest, it came with 3 spacers under the stem and i've just never bothered getting it cut, but could easily go lower.
Yeah... I reckon (without taking the clamp off) that the distance between the top of the cut seat tube on my Scuro and the top of the saddle might be about 6cm too. And the amount I sawed off to get my 73.5cm saddle height (I have the bit here, although not all of it as I trimmed it after first cutting it) was about 5-6cm max... It would be touch and go. I reckon with the slight adjustably you might just possibly have enough height (in which case you wouldn't actually need to cut the seat tube!) but there's about an equal chance you wouldn't... You'd need to check that very carefully. And in any case you would have a lot of ISP showing....Says on geometry for the Scuro that seatpost size for M is 73cm and 75cm for the L. So i'm taking that as leaving me slightly short if i go for the M? Although i don't know what difference the clamp on the ISP will make, if any?
Basically, it sounds like you could be sort of in between sizes, or that the geometry might not be quite right for you because you have a fairly small reach / long leg length.0 -
Do you mean it's a bit high WITH the 3 spacers? And does it also have one of those extended headset top caps? (the Scuro does). You could still go quite a bit lower on your current setup by removing the spacers. The large Scuro has a headtube about the same height (well, 2mm shorter), while the medium is getting on for 3cm shorter than your current setup.
No, I mean it's a bit high with the 3 spacers. Tried it with the spacers out and above the stem, and it was fine position/reach wise, but the headset didn't much like it that way! So yea, i could do without any spacers, no problem. Current setup doesn't have an extended headset top cap.Yeah... I reckon (without taking the clamp off) that the distance between the top of the cut seat tube on my Scuro and the top of the saddle might be about 6cm too. And the amount I sawed off to get my 73.5cm saddle height (I have the bit here, although not all of it as I trimmed it after first cutting it) was about 5-6cm max... It would be touch and go. I reckon with the slight adjustably you might just possibly have enough height (in which case you wouldn't actually need to cut the seat tube!) but there's about an equal chance you wouldn't... You'd need to check that very carefully. And in any case you would have a lot of ISP showing....
Bah. Is the amount of ISP showing a bad thing purely from an aesthetic point of view, or does it have other implications too?
Whats your arm length out of interest? Think when i measured mine last time it was 24.5"-25".0 -
I've always got different results when I've measured arm length, and I don't think it's that much use - reach is influenced by so many different things - flexibility, upper body length etc. Best to go with what you know and adjust accordingly.
It's mainly aesthetic.Bah. Is the amount of ISP showing a bad thing purely from an aesthetic point of view, or does it have other implications too?
IF the seat tube is long enough on the medium, you could probably fit either a medium or large, but you'd have much the same reach problems with the large as you have with your current frame (well, it would be 5mm better, but 90mm is a rather short stem in any case), and with the medium you'd have a long ISP and probably lots of headset spacers.
Some frames are better for some people just because one of the sizes/geometry is spot on - that was a big reason for me choosing the Scuro RS actually, I knew from the geometry that the M size would be a perfect fit.0 -
Fair enough.
Oh well, plenty time to keep looking i suppose.
Question for going forward and looking at other frames, how do I ascertain what difference the seat tube angle makes to the reach when i'm looking at the effective TT length?0 -
Very approximately, an extra degree of seat tube angle increases the effective reach (or the effective effective top tube length
) by a centimeter or maybe a little more, once you have positioned the saddle the same distance behind the BB. It will vary a little with your saddle height however.
Incidentally, sorry - my last comment was slightly off. With the large Scuro, the reach would be 1.5cm (not 5mm) better (shorter) than your current setup, assuming you had the same 90mm stem. It would probably work. But I think you'd be better with a shorter reach for the same head tube length, assuming you don't want to go lower.0 -
Cheers.
Doesn't the large Scuro give me a shorter reach for same head tube length though?
As you've said there, 1.5cm shorter reach than what I have, and the headtube height is only 2mm shorter.
Or did you mean I'd be better with a reach that is shorter by more than 1.5cm for the same headtube length?0 -
As that's based on a 90mm stem, yes.Or did you mean I'd be better with a reach that is shorter by more than 1.5cm for the same headtube length?
IDEALLY, it sounds like you might be better with 1.5cm less reach (or 1cm, or 2cm?) and a 100 or 110cm stem.0 -
Thanks for the advice anyway neeb.
With regards to the Specialized Tarmac SL3, why does the frameset not come as BB30? I'm sure i saw posts saying that if you buy it as a whole bike you do, is that right?
If so, whats an SL3 frameset with standard BB going to suffer with in comparison to the version with it, is it just down to a weight saving?0
