Road Bike Assistance

kalsha · 01-28-2010, 01:32 PM

Can anyone tell me what my frame size would be, im about 170 pounds and 5'9. Also, if anyone lives in san fernando valley could help me out finding a reputable bike shop..thank you.

Memphis1 · 01-28-2010, 01:39 PM

what's your inseam?

i'm assuming 54-56cm would be the correct frame

Red Bread · 01-28-2010, 01:54 PM

Wow, there are a ton of variables to determining sizing. I'd strongly recommend finding a shop that offers professional fittings after talking to you about what type of riding you want to do (centuries, recreational, triathlons, etc). You'll pay between $50 and $100 for a proper fitting, but most shops will refund some or all of that if you buy a frame/bike from them. I'm 6'2" and recently changed from a 59 cm to a 58.5 cm effective top tube, and it's been a pleasant, and noticeable change.

The fundamental thing you want to get right is your position on the saddle, in relation to the cranks/pedals, once you find the right setup for that (and it takes a while if you're a novice) you can work on the other variables, like top tube length, standover, stem length, bar width, headset spacers, etc. Keep in mind that the type of riding you plan on doing will not change your saddle to pedal distance, but will likely alter your reach and drop requirements.

trsbmw · 01-28-2010, 01:55 PM

I'm 6', and ride a 58cm road bike. 56cm should be right for you.

I can't help with the shop question. I would suggest finding a place that can properly fit you to whatever ride you chose. (There more factors than just frame size that can affect your ride quality and comfort)

Hawkeye · 01-28-2010, 04:34 PM

Listen to Red Bread... there is a lot more to it than height, weight and inseam. You can get a simple easy test at most bike shops (they should have something that pushes into your crotch from the floor and measures your inseam properly) that will give you a good idea where to start.

Feyd · 01-28-2010, 06:45 PM

Bicycle John in Burbank.

Good shop.... knows his isht.

fdsasdasdf · 01-29-2010, 12:35 AM

You're my exact weight and height! When I got my roadbike, I got a medium frame size. Works great. My DH bike is medium, too. Fits real well. I'd try a medium size and see how it goes.

Just don't go to Performance. They suck. Get an indy shop.

01-28-2010, 01:32 PM	#1
kalsha Private First Class 11 Rep 147 Posts Drives: MY09 Space Gray E92 Coupe Join Date: Sep 2007 Location: SoCal iTrader: (0)	Road Bike Assistance Can anyone tell me what my frame size would be, im about 170 pounds and 5'9. Also, if anyone lives in san fernando valley could help me out finding a reputable bike shop..thank you.
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01-28-2010, 01:39 PM	#2
Memphis1 Lieutenant Colonel 97 Rep 1,838 Posts Drives: Z4 SDrive 35i Join Date: Oct 2009 Location: CT iTrader: (0)	what's your inseam? i'm assuming 54-56cm would be the correct frame __________________
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01-28-2010, 01:54 PM	#3
Red Bread Major General 4458 Rep 9,160 Posts Drives: Smog machines Join Date: Oct 2008 Location: Austin, TX iTrader: (0)	Wow, there are a ton of variables to determining sizing. I'd strongly recommend finding a shop that offers professional fittings after talking to you about what type of riding you want to do (centuries, recreational, triathlons, etc). You'll pay between $50 and $100 for a proper fitting, but most shops will refund some or all of that if you buy a frame/bike from them. I'm 6'2" and recently changed from a 59 cm to a 58.5 cm effective top tube, and it's been a pleasant, and noticeable change. The fundamental thing you want to get right is your position on the saddle, in relation to the cranks/pedals, once you find the right setup for that (and it takes a while if you're a novice) you can work on the other variables, like top tube length, standover, stem length, bar width, headset spacers, etc. Keep in mind that the type of riding you plan on doing will not change your saddle to pedal distance, but will likely alter your reach and drop requirements. Last edited by Red Bread; 01-28-2010 at 02:33 PM..
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01-28-2010, 01:55 PM	#4
trsbmw deft danish devil 5 Rep 114 Posts Drives: BSM E86 M-Cp, LMB 335d M-Sport Join Date: Apr 2009 Location: Fredericksburg, VA iTrader: (0) Garage List 2007 Z4 M Coupe [0.00]	I'm 6', and ride a 58cm road bike. 56cm should be right for you. I can't help with the shop question. I would suggest finding a place that can properly fit you to whatever ride you chose. (There more factors than just frame size that can affect your ride quality and comfort)
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01-28-2010, 04:34 PM	#5
Hawkeye Brigadier General 2065 Rep 4,365 Posts Drives: '07 Z4 Coupe, '21 X3, '16 GMC Join Date: Aug 2007 Location: Iowa iTrader: (0) Garage List 2016 GMC Sierra SLT [10.00] 2008 Yamaha R6 [9.00]	Listen to Red Bread... there is a lot more to it than height, weight and inseam. You can get a simple easy test at most bike shops (they should have something that pushes into your crotch from the floor and measures your inseam properly) that will give you a good idea where to start. __________________ 2007 Z4 3.0si Coupe • 6 MT • Black Saphire Metallic • PP • SP 2016 GMC Sierra SLT Z71 Premium Plus 4x4 2017 Harley StreetGlide • Denim Black • V&H Tune 2021 BMW x30i • Phytonic Blue Metallic • Fully loaded
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01-28-2010, 06:45 PM	#6
Feyd Major 366 Rep 1,288 Posts Drives: a DEEZZULL Join Date: Aug 2007 Location: Chicago, IL iTrader: (2)	Bicycle John in Burbank. Good shop.... knows his isht.
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01-29-2010, 12:35 AM	#7
fdsasdasdf Captain 129 Rep 778 Posts Drives: 330Ci ZHP 6sp Join Date: Apr 2009 Location: Raleigh, NC iTrader: (0)	You're my exact weight and height! When I got my roadbike, I got a medium frame size. Works great. My DH bike is medium, too. Fits real well. I'd try a medium size and see how it goes. Just don't go to Performance. They suck. Get an indy shop.
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