Cervelo Sizing

canoas

I've ridden traditional top tubes for years, I always choose a 58cm Colnago with 56cm TT (carbon range). I am exactly 6 foot (183cm).

There is a bargain Cervelo sale R3, I need a winter bike. My winter one snapped (carbon) after 10 years!

Anyone have any idea about Cervelo sizing? I mean these sloping tubes are all new to me. I always thought Ernesto was the king of geometry for bike frames. I'm entering a new world! I need a winter bike and the sales are good, a few guys from my club give Cervelo good feedback.

Any size recommendations, the shop doesn't seem to be know much about Cervelo frame sizing in my opinion. Frame sale only!

greasedscotsman

Check out this geometry chart, it gives the top tube length as if it was a frame with a horizontal top tube. You should be able to work it out from there...

http://www.cervelo.com/media/docs/R3-f4 ... f024-0.pdf

canoas

a 56cm then by chart. for a 58cm they say TT 58.1cm forget that, that would be massive!

anyway with a 56cm is I find it too small I'll just go for a longer stem I suppose.

Stack figure form Cervelo I wonder if this is the same as C-C?

robhicks

I'm 6ft and just bought a 56cm R3 last week. Sizing for me is spot on.
If you can get to a shop that stocks R3s, then see if you can sit on one first to be safe.
Hurry though, the R3s are flying off the shelves - very pleased with mine!

velojay

56 will be your size. It has a 565mm effective top tube on most Cervelos. I'm 181cm tall and ride a 56 although I can also ride a 54 with a longer stem as well.

canoas

56cm looks the size then.

On another note, been a Campy fan. I am really disappointed with this Bbright BB....what the hell is this suppose to be, who came up with this bright idea, why just not use BB30 instead if your going big! Caters for Sram. Looks really complicated to put Campy on, anyone know as easy solution.

FransJacques

What's your BB to top of the saddle measurement? Mine's 79 and I ride a 56 R3SL from 2009 - so has the shorter HT. Fair bit of post showing but a nice look. Stem is a 12 cm.

mfin

VeloJay wrote:

56 will be your size. It has a 565mm effective top tube on most Cervelos. I'm 181cm tall and ride a 56 although I can also ride a 54 with a longer stem as well.

I'm bang on 6ft and ride a 54cm with a 13cm stem, can't get low enough on a 56cm without a -17 stem and didn't wanna use one. 13cm stem is good for 6ft. See 6ft people riding anything less than 110mm and the frame is not the right fit IMO.

velojay

mfin wrote:

VeloJay wrote:

56 will be your size. It has a 565mm effective top tube on most Cervelos. I'm 181cm tall and ride a 56 although I can also ride a 54 with a longer stem as well.

I'm bang on 6ft and ride a 54cm with a 13cm stem, can't get low enough on a 56cm without a -17 stem and didn't wanna use one. 13cm stem is good for 6ft. See 6ft people riding anything less than 110mm and the frame is not the right fit IMO.

Yes. I'm similar. Have slightly short legs but long body so I ride a 56 with 12cm stem slammed to get low enough. I could also opt for a 54 with 13cm stem. Cervelo do seem to have slightly taller head tubes than some other so this should be taken into account if you want to get low.

mister p

canoas wrote:

56cm looks the size then.

On another note, been a Campy fan. I am really disappointed with this Bbright BB....what the hell is this suppose to be, who came up with this bright idea, why just not use BB30 instead if your going big! Caters for Sram. Looks really complicated to put Campy on, anyone know as easy solution.

You should be able to buy a BBRight bracket for Campag Ultra Torque chainsets. Any Cervelo dealer can buy one from Madison through their telesales department, part number is RVBB03.

graham_g

I'm about to try a 58, I'm 5'10" but am in the 'not normal' 10% when it comes to fit - I'll be interested to see how it goes as the stack + reach are within 5-10mm of my current set up (custom steel frame), which all indicates it's right, but there's still that 'wtf? a 58?!' thing in the back of my head.

mister p

How do you mean you are not normal? I am 5ft 10 and have had both 56cm and 54cm Cervelo S1 frames. The 56 was a shade too long, I ran a 90mm stem with it, the 54 had a 110mm. I would be very surprised if you need a 58cm, two of my colleagues are 6ft 1 and ride that size.

graham_g

34" inside leg, freakishly long on the lower leg so I need the height but not the greater set-back behind BB, stack/reach on my custom bike is 605mm/585mm with a 110mm stem. Getting the bars high enough to accommodate that extra leg length is the issue on most stock frames; I've still got ~25mm of spacers on the stem with an external headset and 190mm headtube (built for a longer fork with deep drop calipers/mudguard clearance) and have about a 50mm drop from saddle to bars.


*Edit, I can't believe this thread has gone to double figures without saying 'a cervelo as a winter bike? are you on crack?!'

canoas

mister p wrote:

canoas wrote:

56cm looks the size then.

On another note, been a Campy fan. I am really disappointed with this Bbright BB....what the hell is this suppose to be, who came up with this bright idea, why just not use BB30 instead if your going big! Caters for Sram. Looks really complicated to put Campy on, anyone know as easy solution.

You should be able to buy a BBRight bracket for Campag Ultra Torque chainsets. Any Cervelo dealer can buy one from Madison through their telesales department, part number is RVBB03.

Thanks for this info, brilliant. Not that I dislike SRAM!

183cm I am, 56cm R3 looks the frame to purchase, my Saddle to BB is 782mm and tip of Saddle to Centre handlebars 605mm. I ride a 565mm TT with my Colnago C59.

Well all, I went for my first test ride with a friends R3 56cm from my local club that I tracked down, he has a shorter stem so I had to set the saddle back further and adjust saddle height. R3 is a really nice ride (his a 2010). Its no where near as responsive as my C59 nor going down fast decents the C59 is much smoother and better around corners, I mean R3 can never compete with a C59, however I'm really impressed with the bike for climbing and the road vibration is minimal (3 hour ride) Its a smooth ride, better than expected, ready to buy!

Cheers.