No idea on bike size but feels seat is too close?

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Jcr1
Posts: 2
Joined: 1 Apr 2024, 2:45pm

No idea on bike size but feels seat is too close?

Post by Jcr1 »

No idea on how to upload an image. Got a bike for free on marketplace. I’ve googled all the words I can see and nothing comes up. The seat feels too close to the handle bars. Like my bum is shuffling backwards as far as it can to make it comfy. Do I need a bigger frame size or just adjust the seat? I did put the seat up a bit, my feet were still flat on the floor but I can’t see how making it taller will make it feel further back? It’s like my bum is too close??

Can anyone help? I have a serial number but guess this is of no info to anyone lol
Jdsk
Posts: 27941
Joined: 5 Mar 2019, 5:42pm

Re: No idea on bike size but feels seat is too close?

Post by Jdsk »

Welcome

You can show images either by linking to them on an external server or by uploading them here. For the latter start here:
viewtopic.php?p=1836127#p1836127

Jonathan
freeflow
Posts: 1698
Joined: 29 Aug 2011, 1:54pm

Re: No idea on bike size but feels seat is too close?

Post by freeflow »

Start here

https://wheel-easy.org.uk/wp-content/up ... -2017a.pdf

A a quick start position is that your leg should be straight when you are sat on the saddle with your heel on the pedal.
Jdsk
Posts: 27941
Joined: 5 Mar 2019, 5:42pm

Re: No idea on bike size but feels seat is too close?

Post by Jdsk »

Have you checked all of the adjustments that you can make at the handlebars and at the seat? And do you already have suitable tools?

As a starting position I'd advise getting seat at the right height for pedalling, just a slight bend in your knee when it's fully extended (or fully extended when testing with your heel, as above). This may mean not being able to get both feet flat on the floor, and on many bikes that then requires getting off the saddle when you stop and back on when you start.

Yes, it does sound as if moving the saddle further back could help. But do the height first.

And when you've worked out how to show photos please post one of you on the bike, on the saddle, feet on the pedals.

Jonathan
Last edited by Jdsk on 1 Apr 2024, 3:25pm, edited 2 times in total.
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531colin
Posts: 17022
Joined: 4 Dec 2009, 6:56pm
Location: North Yorkshire

Re: No idea on bike size but feels seat is too close?

Post by 531colin »

DIY bike fitting linked below

Set saddle height first.
Then saddle setback, relative to the pedals. ….KOPS will do for now.
Having done those 2 you can now sensibly judge reach to the bars
If you can, get someone to video you riding from the side.
I think you need to post the video on you tube and post a link here, but all that is beyond this old man!

Oh dear, just seen the date!
Bike fitting D.I.Y. .....http://wheel-easy.org.uk/wp-content/upl ... -2017a.pdf
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Remember, anything you do (or don't do) to your bike can have safety implications
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531colin
Posts: 17022
Joined: 4 Dec 2009, 6:56pm
Location: North Yorkshire

Re: No idea on bike size but feels seat is too close?

Post by 531colin »

freeflow wrote: 1 Apr 2024, 3:18pm Start here

https://wheel-easy.org.uk/wp-content/up ... -2017a.pdf

A a quick start position is that your leg should be straight when you are sat on the saddle with your heel on the pedal.
Oops, didn’t see this ; not got my glasses!
Bike fitting D.I.Y. .....http://wheel-easy.org.uk/wp-content/upl ... -2017a.pdf
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Remember, anything you do (or don't do) to your bike can have safety implications
Jcr1
Posts: 2
Joined: 1 Apr 2024, 2:45pm

Re: No idea on bike size but feels seat is too close?

Post by Jcr1 »

freeflow wrote: 1 Apr 2024, 3:18pm Start here

https://wheel-easy.org.uk/wp-content/up ... -2017a.pdf

A a quick start position is that your leg should be straight when you are sat on the saddle with your heel on the pedal.
When my foot touches the bottom pedal my leg is bent lol
rareposter
Posts: 3078
Joined: 27 Aug 2014, 2:40pm

Re: No idea on bike size but feels seat is too close?

Post by rareposter »

Jcr1 wrote: 1 Apr 2024, 4:54pm When my foot touches the bottom pedal my leg is bent lol
You've got a bike that's way too small for you.
Jdsk
Posts: 27941
Joined: 5 Mar 2019, 5:42pm

Re: No idea on bike size but feels seat is too close?

Post by Jdsk »

Jcr1 wrote: 1 Apr 2024, 4:54pm
freeflow wrote: 1 Apr 2024, 3:18pm Start here

https://wheel-easy.org.uk/wp-content/up ... -2017a.pdf

A a quick start position is that your leg should be straight when you are sat on the saddle with your heel on the pedal.
When my foot touches the bottom pedal my leg is bent lol
There are two techniques upthread which give the same result: slightly bent with the toe on the pedal and straight with the heel on the pedal.

Jonathan
freeflow
Posts: 1698
Joined: 29 Aug 2011, 1:54pm

Re: No idea on bike size but feels seat is too close?

Post by freeflow »

Using the lower pedal when the cranks are aligned with the seatube
Nicholas
Posts: 134
Joined: 30 Apr 2023, 11:53am

Re: No idea on bike size but feels seat is too close?

Post by Nicholas »

Jcr1 wrote: 1 Apr 2024, 2:52pm Can anyone help? I have a serial number but guess this is of no info to anyone lol
Is the serial number LIRPALOOF by any chance?
cyclop
Posts: 1081
Joined: 3 Oct 2013, 7:49am
Location: Dumfriesshire

Re: No idea on bike size but feels seat is too close?

Post by cyclop »

Nicholas wrote: 2 Apr 2024, 6:25am
Jcr1 wrote: 1 Apr 2024, 2:52pm Can anyone help? I have a serial number but guess this is of no info to anyone lol
Is the serial number LIRPALOOF by any chance?
I see what you did there
:wink:
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