Should I go one size smaller? (Advise Needed)

Discuss light weight issues concerning road bikes & parts.
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bryrene
Posts: 18
Joined: Tue Mar 21, 2017 9:40 pm

by bryrene

Hi!
I'm planning to get a new bike (Bowman Palace R) however, the bike size recommended is in between Size 52 and 54. Understand that getting one size smaller will be good as more adjustment to be made. I'm noob in reading bike geometry, Do you think I can fit into size 52? (Better looks with higher seat post)

My height 173cm, inseam 78cm. According to the Bowman website my size is between 52 and 54.

My current bike Storck Fascenario 7 (Size S) http://www.storckworld.com/en/bike-find ... atinum-g1/
Stack: 541
Reach: 388

Bowman Palace R (Size 52) https://bowman-cycles.com/product/palace-r/#geometry
Stack: 530
Reach: 368

Bowman Palace R (Size 54)
Stack: 542
Reach: 375

My bike fit report: https://drive.google.com/file/d/17yT0vV ... sp=sharing

Thank you very much for the advise.
Really do appreciated!

Bryan

AJS914
Posts: 2123
Joined: Tue Jan 28, 2014 6:52 pm

by AJS914

How does the Stork fit? The reach on the smaller Bowman is 20mm less. Can you deal with that? I guess you could if you have a short stem on your Stork.

by Weenie


TobinHatesYou
Posts: 1532
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

1) You have 5cm in spacers on the rough equivalent of a 54cm Storck.
2) The 52cm Bowman Palace R is significantly shorter and lower.

5cm in spacers is above the recommended limit for a lot of manufacturers.

Go with the 54cm...better yet go with something with an endurance geometry.

hannawald
Posts: 228
Joined: Sat Dec 17, 2016 7:28 pm

by hannawald

According to Bowman you are 54. This bigger size is also similar to what you currently ride. Easy choice:) You can adjust reach with longer stem on 52, but it will probably be too low, you will have chimney of spacer, it will not look good. go 54..

rexyi1990
Posts: 86
Joined: Tue Feb 20, 2018 3:05 pm

by rexyi1990

Size 54 is more suitable for you. If you feel the curreny frame is good fit.

TobinHatesYou
Posts: 1532
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

I did some shitmath. With the 52cm Bowman, he would need 56mm in spacers and a 120mm -6deg stem. Or he could flip the stem +6deg and use 31mm in spacers.

Even on the 54cm he would need a 110mm -6deg stem and 45mm in spacers.

Get a less aggressive bike.

DJT21
Posts: 192
Joined: Sun Mar 27, 2011 7:35 pm

by DJT21

Get another bike fit or do some stretching. 38mm of saddle to bar drop means you'll struggle to get a good fit on any road racing bike.

shimmeD
Posts: 417
Joined: Thu Jun 28, 2012 10:52 pm
Location: eNZed

by shimmeD

Because I have the same inseam of 78cm (different height I'm 164cm) I was curious to have a look at the fit data. My seat height is only 663mm (vs 699mm a whopping 36mm difference) and I'm going 'how do you pedal at that seat height?' And isn't 7deg saddle slope pretty aggro?
Less is more.

TobinHatesYou
Posts: 1532
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

shimmeD wrote:
Sun May 06, 2018 11:31 pm
Because I have the same inseam of 78cm (different height I'm 164cm) I was curious to have a look at the fit data. My seat height is only 663mm (vs 699mm a whopping 36mm difference) and I'm going 'how do you pedal at that seat height?' And isn't 7deg saddle slope pretty aggro?
The Zin wand can report weird saddle angles when the saddle has a curved profile. I don’t think 699mm is too out of the ordinary depending on shoe stack height, pedal stack height, saddle cushioning, setback, etc. I’m like you though, 178cm (5’10”) with deep setback. My saddle height is just 717mm. It’s more aero anyway. ;)

acroft95
Posts: 4
Joined: Mon Feb 12, 2018 7:00 am

by acroft95

I'm 173cm and have a 54cm on the way to me right now. I'd also need a lot more spacers on the 52cm and the reach isn't much less. Go for the 54.

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silvalis
Posts: 407
Joined: Mon Sep 07, 2015 1:02 am
Location: Aus

by silvalis

TobinHatesYou wrote:
Mon May 07, 2018 2:57 am


The Zin wand can report weird saddle angles when the saddle has a curved profile. I don’t think 699mm is too out of the ordinary depending on shoe stack height, pedal stack height, saddle cushioning, setback, etc. I’m like you though, 178cm (5’10”) with deep setback. My saddle height is just 717mm. It’s more aero anyway. ;)
Says it's a spesh power though, which isn't very curved at all. OP might really just have it tipped down that far (or at least not as far as suggested). Also making the setback seem a lot further back than what it actually is - see effective seat tube angle which would suggest a more modest setback maybe 20mm less with a 'normal' saddle - so possibly further forward and hence higher than what ShimmD runs?
Chasse patate

by Weenie


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