Sizing Comparison

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dcacooper
Peloton Rider

Posts: 9

Sizing Comparison Dec 10, 2020 13:53:50 GMT

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Post by dcacooper on Dec 10, 2020 13:53:50 GMT

Hi there,

Very quick question, if you don't mind ...

I am currently riding a size 57 500SE, which I intend to retire to turbo trainer duties in favour of a new RC520, now that I have the budget (assuming they ever get any stock). Obviously the sizing of bikes now follows the S/M/L etc. pattern, and the online size guide indicates that I should be riding a M (I am around 177cm tall). However, I have also been told by someone at Decathlon that a size 57 is more like the current L size.

Anyone have any direct experience of how these sizes actually compare ... being in a tier 3 area, I cannot travel to my local store to try one out unless and until travel restrictions are eased, and would like to buy sooner rather than later (again, assuming they ever get any in stock).

Thanks for your time,
David

robertsims Road Captain Content Rouleur !!! Posts: 2,467	Sizing Comparison Dec 10, 2020 16:21:01 GMT via mobile Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by robertsims on Dec 10, 2020 16:21:01 GMT No direct experience I'm afraid but in most brands a large is around a 58cm.

Mel-in-Red Peloton Rider Techno Junkie now..😁 Posts: 277	Sizing Comparison Dec 10, 2020 16:47:25 GMT via mobile Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Mel-in-Red on Dec 10, 2020 16:47:25 GMT I am 180cm, and my Ultra 500 is a medium (54) and i find it a comfortable fit.
	Nil sine Labore.

Rocket
Directeur Sportif

Resident Stig

Posts: 4,893

Sizing Comparison Dec 10, 2020 22:11:45 GMT

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Post by Rocket on Dec 10, 2020 22:11:45 GMT

The RC520 has a shorter reach and higher stack than a 500SE so I'd be inclined to go medium unless to want a more upright riding position. Smaller frame and possibly a longer stem.

I'm 183cm and was riding a 57cm Triban 3 (same frame as 500SE). You probably would have been better on a 54cm 500SE.

Last Edit: Dec 10, 2020 22:14:06 GMT by Rocket

At the end of the day.... it goes dark.

jondxxx Rouleur "First things first but not necessarily in that order". Dr Who Posts: 1,014	Sizing Comparison Dec 10, 2020 23:30:23 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jondxxx on Dec 10, 2020 23:30:23 GMT Lie Rocket at 183cm I have the 57cm frame. I think the usual comment is if in doubt go for the smaller option.
	“Every time you miss your childhood, ride on a bicycle!” ― Mehmet Murat ildan

chas Road Captain Man from Decathlon !!! Posts: 2,444	Sizing Comparison Dec 12, 2020 8:52:47 GMT via mobile Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by chas on Dec 12, 2020 8:52:47 GMT I'm 175cm and have a m rc520, I would have ridden a 54 in the older models. I would suggest a m for you.

dcacooper
Peloton Rider

Posts: 9

Sizing Comparison Jan 18, 2021 10:57:04 GMT chas and Mel-in-Red like this

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Post by dcacooper on Jan 18, 2021 10:57:04 GMT

Hi all,

Thank you for your responses on this topic. Now taken possession of a shiny new RC520, and first impressions ... excellent.

I went for the Medium in the end, and feel that was definitely the right choice, everything just feels like it is in the right place, comfortable riding position, the works ... and Rocket, I think you were probably spot on that the 54cm 500SE would have been a better choice at the time. It being my first road bike (at least the first I had owned in about 30 years) I naively took the recommendation of the guy in-store that the 57 was right. Don't regret it for a second ... that bike and I have clocked up 15,000 miles, including 7 centuries, and always had fun together, but still ...

Thank you all,
David

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