Colnago C64 sizing query

Discuss light weight issues concerning road bikes & parts.
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maxice
Posts: 84
Joined: Wed Aug 15, 2018 11:05 pm

by maxice

Hi,

Finally decided on a Colnago C64 but have a query over frame sizes.

I believe I am in between a 45s or 48s going by several websites

Measurements as follows:
Height 169cm
Inseam 75.5cm

Have had a retul fit in the past with the following details:
Saddle height 68cm
Saddle setback -4.7cm
Saddle angle -1deg
Eff Seat tube angle 74deg
Grip Angle 30deg
Handlebar reach 49.7cm
Handlebar drop -4.6mm
Grip Reach 59cm
Grip drop -1.2cm
Bar Reach 4.2cm
BB to Grip reach 54.4cm
Handlebar Stack 59.3cm
Handlebar reach 45cm

Which frame size would be better? Would probably prefer the smaller frame but would this be comfortable?. Need to also consider any toe overlap (would this be an issue in a smaller frame?)

thanks

LeMomo
Posts: 44
Joined: Mon Apr 23, 2018 1:28 pm

by LeMomo

I've been looking at how alternative frames compare with what I've gurrently got and have been using http://www.bikegeo.net to visualise the comparative stack and reach numbers, might be worth pluggin both sizes in and working out what spacer/stem combos you'd need and go from there.

I can't offer specific advice on those 2 frame sizes, a C64 is on my short list but I'd be looking at a 56s with a 12cm stem to get my personal fit.

by Weenie


Dokas
Posts: 23
Joined: Thu Jun 02, 2016 2:12 pm

by Dokas

My height is 177
Colnago v1-r used
but I know c64 and geometry is the same or very similar
I'm using size 50
stem Size 90mm

I think it is good to use a size smaller than 48.

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wheelsONfire
Posts: 2779
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

Bikes:

Ax Lightness Vial EVO Race (2018.12.21)
viewtopic.php?f=10&t=156137
Paduano Racing Fidia (kind of shelved)
Open *UP* (2016.04.14)


Ex bike; Vial EVO D

r4nd0mv4r14bl3
Posts: 82
Joined: Thu Jun 11, 2015 9:26 am

by r4nd0mv4r14bl3

I have used this

https://www.velogicfit.com/frame-comparison-product/

IIRC no need to register. If you know your desired handlebar reach and stack, this lets you see how different frame sizes fit for you.

Sent from my ONEPLUS A6003 using Tapatalk


maxice
Posts: 84
Joined: Wed Aug 15, 2018 11:05 pm

by maxice

LeMomo wrote:
Wed Nov 28, 2018 4:38 pm
I've been looking at how alternative frames compare with what I've gurrently got and have been using http://www.bikegeo.net to visualise the comparative stack and reach numbers, might be worth pluggin both sizes in and working out what spacer/stem combos you'd need and go from there.

I can't offer specific advice on those 2 frame sizes, a C64 is on my short list but I'd be looking at a 56s with a 12cm stem to get my personal fit.
Tried this, not sure I understand the results!

maxice
Posts: 84
Joined: Wed Aug 15, 2018 11:05 pm

by maxice

As expected im in the middle of 45 or 48

by Weenie


Johnny Rad
Posts: 1964
Joined: Fri Feb 17, 2006 6:22 am
Location: Zion

by Johnny Rad

I’m your height. Your inseam is a hair longer.

I ride a 49cm Scott Addict and have decided, based only on frame dimensions and not a test ride, that I’d ride a Colnago 45s.

Good luck! Suggest a test ride.

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