proper bike size
09-30-12, 03:30 PM
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proper bike size
Hi
A newbie to road biking here..
I have been riding a hybrid and mountain bike for the past few years, and finally decided to get into road biking and bought a road bike few days ago. I'm about 5.5 and I had a choice of going with a bike size 48 or 51. Considering my height I had thought that the size 51 will be appropriate, but the guys at the shop (after seeing me on the bike on a treadmill) insisted that I need the size 48. The bike shop guys were very professional and seemed like they know what they are doing.
I rode the bike (the size 48) for about 30 miles yesterday. I noticed a severe/moderate pain in my upper back and neck after about 20 minutes into the ride, and I am still feeling the pain today. Just wondering the cause of the pain. Is the pain caused by riding a bike that is too small or caused simply because this is my first road bike ride (and I'm not used to the handle bar position of the road bike as opposed to the more upright position of a hybrid/Mt bike?
A newbie to road biking here..
I have been riding a hybrid and mountain bike for the past few years, and finally decided to get into road biking and bought a road bike few days ago. I'm about 5.5 and I had a choice of going with a bike size 48 or 51. Considering my height I had thought that the size 51 will be appropriate, but the guys at the shop (after seeing me on the bike on a treadmill) insisted that I need the size 48. The bike shop guys were very professional and seemed like they know what they are doing.
I rode the bike (the size 48) for about 30 miles yesterday. I noticed a severe/moderate pain in my upper back and neck after about 20 minutes into the ride, and I am still feeling the pain today. Just wondering the cause of the pain. Is the pain caused by riding a bike that is too small or caused simply because this is my first road bike ride (and I'm not used to the handle bar position of the road bike as opposed to the more upright position of a hybrid/Mt bike?
09-30-12, 03:36 PM
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Takes about 2000 miles to get in shape.
Take a 5 min break when your back hurts.
Take a 5 min break when your back hurts.
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Last edited by 10 Wheels; 09-30-12 at 03:39 PM.
09-30-12, 07:42 PM
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48cm is probably a better fit, unless you found a 50cm frame. Saddle postition, stem height/length, and handlebar pitch can also factor in these. On virtually any road bike you are less upright than on a mountain bike. Give it a few hundred miles and do some ab/core exercises. Make small adjustments one or two at most until it is perfect or as good as it can get. Once it is right leave it alone. You can feel the same at 80 miles as you did at 20 miles.
Last edited by lesdunham; 09-30-12 at 07:44 PM. Reason: typo
10-02-12, 12:07 AM
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Take your height in inches, subtract 14. The resulting number is a very close estimate of your ideal frame size, in centimeters.
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