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What is the Ideal size of stem for a Bike

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Old 02-28-14, 11:03 AM
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What is the Ideal size of stem for a Bike

Hello Everyone,

Hope Everyone doing well.

Recently my friend got new Bike and he is really confused about what should be the Ideal size of stem for a Bike.Please let me know your solutions so that I can Help my friend.
Also is there any kind of Advantage having a adjustable Stem.
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Old 02-28-14, 11:34 AM
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The size? Bar clamp size? Steerer clamp size? Stem length? The first two depend on the diameter of the handlebar and fork steerer, respectively. The third will depend on the size of the frame and the size and proportions of the rider- it is about proper fit.
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Old 02-28-14, 11:37 AM
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Originally Posted by demoncyclist
The size? Bar clamp size? Steerer clamp size? Stem length? The first two depend on the diameter of the handlebar and fork steerer, respectively. The third will depend on the size of the frame and the size and proportions of the rider- it is about proper fit.

Really thanks for your valuable suggestion.
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Old 02-28-14, 11:37 AM
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There is no one Ideal Size stem. If there were, they wouldn't make so many different variations. There is an ideal size for you, your particular bike, your particular handlebar, your particular riding style, your particular flexibility.
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Old 02-28-14, 11:40 AM
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Originally Posted by caloso
There is no one Ideal Size stem. If there were, they wouldn't make so many different variations. There is an ideal size for you, your particular bike, your particular handlebar, your particular riding style, your particular flexibility.
Thanks caloso. Also I want to confirm that adjustable stem modifies handlebar height and length or not ?
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Old 02-28-14, 11:46 AM
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Originally Posted by Adam Jackson
Thanks caloso. Also I want to confirm that adjustable stem modifies handlebar height and length or not ?
It modifies angle.
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Old 02-28-14, 11:48 AM
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Every adjustable stem I've ever seen has a hinge. That raises the bar, but it also has the effect of shortening the reach too. Somewhere on the internets is a chart that helps illustrate this effect, but I can't find it now.
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Old 02-28-14, 11:49 AM
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Originally Posted by RPK79
It modifies angle.
Hello RPK79 ,

Thanks for your answer . But can you tell me how it can modify angle
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Old 02-28-14, 11:54 AM
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It uses a combination of alchemy and psionics.
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Old 02-28-14, 11:56 AM
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See the pivot? That is how it adjsuts the angle. BTW, they can slip. IMO, they should only be used long enough to establish the proper riding position, then the should be replaced with a proper stem that matches the adjusted one as closely as possible.
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Old 02-28-14, 11:56 AM
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Originally Posted by RPK79
It uses a combination of alchemy and psionics.
Thanks RPK79
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Old 02-28-14, 11:58 AM
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Originally Posted by demoncyclist


See the pivot? That is how it adjsuts the angle. BTW, they can slip. IMO, they should only be used long enough to establish the proper riding position, then the should be replaced with a proper stem that matches the adjusted one as closely as possible.
Very nice information . I feel proud now beacuse I can Help my Friend.
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Old 02-28-14, 11:59 AM
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160mm. Accept no less.
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Old 02-28-14, 12:04 PM
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Is it true that small adjustment in the stem length can make a big difference in the way things feel.
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Old 02-28-14, 12:05 PM
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I think the 50mm is the way to go.
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Old 02-28-14, 12:08 PM
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Originally Posted by Adam Jackson
Is it true that small adjustment in the stem length can make a big difference in the way things feel.
Absolutely. For me, the difference between 11 cm and 12 cm isn't just a centimeter, it's perfect vs. way too stretched out.
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Old 02-28-14, 12:09 PM
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Originally Posted by RPK79


I think the 50mm is the way to go.
Even my friend was saying that 60mm would be Ok.
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Old 02-28-14, 12:10 PM
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Originally Posted by LesterOfPuppets
160mm. Accept no less.
Isn't 160mm will be too much .
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Old 02-28-14, 12:12 PM
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Originally Posted by Adam Jackson
Is it true that small adjustment in the stem length can make a big difference in the way things feel.
Yep. In a perfect world all stems would be available in 5mm increments. What a nightmare that would be for stem manus and everyone in the supply chain, however.
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Old 02-28-14, 12:14 PM
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Originally Posted by RPK79

I think the 50mm is the way to go.
50mm is too much. They should start making these in riser and drop bar variants

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Old 02-28-14, 12:17 PM
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Originally Posted by LesterOfPuppets
50mm is too much. They should start making these in riser and drop bar variants

Thanks for your very useful suggestion.I will definitely let know about this to my Friend.
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Old 02-28-14, 12:17 PM
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[QUOTE=LesterOfPuppets;16535742]50mm is too much. They should start making these in riser and drop bar variants

[/QUOTE0]



This is a solid choice. Otherwise I would go this route:

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Old 02-28-14, 01:05 PM
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[QUOTE=RPK79;16535754]
Originally Posted by LesterOfPuppets
50mm is too much. They should start making these in riser and drop bar variants

[/QUOTE0]



This is a solid choice. Otherwise I would go this route:

Well i just know little bit that an adjustable stem can help maintaining a bike's fit over time as a kid grows.
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Old 02-28-14, 04:23 PM
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Not all adjustable stems slip... I bought the Ritchey adjustable stem for a bike where I am not sure where I need the bars, and you basically have to take it apart to adjust the angle. A little less convenient than those that use friction, but more secure.

https://www.biketiresdirect.com/produ...ngle-road-stem
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Old 02-28-14, 11:55 PM
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when I have it right , line of sight is straight down thru the steering axis..
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