Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Touring Have a dream to ride a bike across your state, across the country, or around the world? Self-contained or fully supported? Trade ideas, adventures, and more in our bicycle touring forum.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 05-11-06, 02:36 PM   #1
Ktea
Junior Member
Thread Starter
 
Join Date: May 2006
Location: Central VA
Bikes: 2006 Trek 520, 2009 Jamis Quest, 2012 Trek 7.2
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
LHT sizing question

When I was shopping for a road bike, the guy at my LBS said I should get a 52cm, and that is what I ended up buying. I'm currently working on building up a LHT and bought one of the last remaining 52cm sage green LHTs. Now, however, when I compare my measurements with the Rivendell recommendations, I come up measuring for a 54 or 56. My road bike is comfortable but I've never ridden it for days on end or anything- I just use it for transportation around town. Based on your experiences, how accurate is the Rivendell measuring system? I'm wondering if I should sell my 52cm frame and buy a larger one (even if that would mean giving up the beloved sage green color). Thanks for any advice!
Ktea is offline   Reply With Quote
Old 05-11-06, 03:18 PM   #2
bwgride
Slow Rider
 
bwgride's Avatar
 
Join Date: Aug 2004
Location: Georgia, USA
Bikes:
Posts: 924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by Ktea
When I was shopping for a road bike, the guy at my LBS said I should get a 52cm, and that is what I ended up buying. I'm currently working on building up a LHT and bought one of the last remaining 52cm sage green LHTs. Now, however, when I compare my measurements with the Rivendell recommendations, I come up measuring for a 54 or 56. My road bike is comfortable but I've never ridden it for days on end or anything- I just use it for transportation around town. Based on your experiences, how accurate is the Rivendell measuring system? I'm wondering if I should sell my 52cm frame and buy a larger one (even if that would mean giving up the beloved sage green color). Thanks for any advice!
What is your inseam measurement (without shoes from bottom of foot to crotch)? How much standover room do you have now with current LHT?
bwgride is offline   Reply With Quote
Old 05-11-06, 04:05 PM   #3
Old_Fart
Senior Member
 
Old_Fart's Avatar
 
Join Date: Mar 2006
Location: In a cardboard box by Alki beach.
Bikes:
Posts: 346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There are big differences in bike fit phylosophies between bike fit experts. I did a Google search for bicycle fit calculator. I came up with a few different calculators, some more involved than others, ran through a couple of them, and compared the results.

For all of them, it is helpful to have someone help you do the measurements, as it is tough to do some of the measurements by yourself.

Wrench science is a good one that largely agreed with the fit I had done by my LBS, who use the Fit Kit system.
http://www.wrenchscience.com/ws1/Sec...ing/Height.asp

Competetive Cyclist has another one. This one seems to be very much aimed at a racer's fit. Even the more casual option.
http://www.competitivecyclist.com/za...LCULATOR_INTRO

Some are more simplistic, like the Tiemeyer calculator,
http://www.tiemeyercycles.com/fit.htm

Anyway, some interesting stuff to play around with. I pretty much found out that the bike I was riding and adjusted through trial and error was right in line with Wrench Science and Fit Kit.
Old_Fart is offline   Reply With Quote
Old 05-11-06, 06:01 PM   #4
Ktea
Junior Member
Thread Starter
 
Join Date: May 2006
Location: Central VA
Bikes: 2006 Trek 520, 2009 Jamis Quest, 2012 Trek 7.2
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My inseam measurement is a little over 32 inches. I haven't built up the LHT yet, but based on the Surly website the 52cm has a standover height of 30.5 inches. "Old Fart", thanks for all of the links! The calculators tend to recommend a 56...
Ktea is offline   Reply With Quote
Old 05-11-06, 06:33 PM   #5
Old_Fart
Senior Member
 
Old_Fart's Avatar
 
Join Date: Mar 2006
Location: In a cardboard box by Alki beach.
Bikes:
Posts: 346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That seems like a big jump from a 52 to a 56. I guess since different bike/frame makers size their frames differently, that may or may not really be such a big difference.

What kind of bike is the 52 you are currently riding? Did the guy that sold you/sized you for that bike fit you based only on stand-over clearance?
Old_Fart is offline   Reply With Quote
Old 05-11-06, 08:02 PM   #6
NoReg
Banned
 
Join Date: Aug 2005
Bikes:
Posts: 5,117
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds short to me. I am 6' 1" about 32+ in standover, and I ride a 58. The 58 I have is about 1/2" taller than an LHT since mine has a higher BB. I couldn't get the LHT before my trip, but it should be perfect for me. So yeah, you would be in the 56-58 range. unless you are 32, but 5'8", a really short torso. I have about 78" inches of wingspan reach.

For touring I really like this calculator, French fit, http://www.competitivecyclist.com/za...LCULATOR_INTRO
NoReg is offline   Reply With Quote
Old 05-11-06, 10:05 PM   #7
Old_Fart
Senior Member
 
Old_Fart's Avatar
 
Join Date: Mar 2006
Location: In a cardboard box by Alki beach.
Bikes:
Posts: 346
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What kind of frame are you on now, Peterpan?
Old_Fart is offline   Reply With Quote
Old 05-11-06, 10:31 PM   #8
roadfix
hello
 
roadfix's Avatar
 
Join Date: May 2003
Location: Los Angeles
Bikes:
Posts: 18,566
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
I sized my LHT frame so I only have a fistful of seatpost exposed. That makes leveling the bars to saddle height much easier. But beware of top tube length.... My 52cm LHT has a slightly longer top tube than my comparably sized road bikes.
roadfix is offline   Reply With Quote
Old 05-11-06, 10:43 PM   #9
NoReg
Banned
 
Join Date: Aug 2005
Bikes:
Posts: 5,117
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
OF, Urbanite, you can see it here: http://69.16.211.161/showthread.php?t=69234&page=16.

Thanks for asking. I'm selling it if I can find any local (toronto) interest, in order to get together a war chest for my home custom. Maybe I will be sorry, because I just love this bike. But that makes me think if I upgraded everything it would probably end up better still... not very likely? Oh, I'm not going to sell the brooks for anything!
NoReg is offline   Reply With Quote
Old 05-12-06, 08:45 AM   #10
ncscott
cyclist
 
Join Date: Aug 2004
Location: vermont
Bikes: road bike, mountain bike, touring bike
Posts: 332
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
thats odd. Based on my 29.5 inch inseam, I'm getting 46, 48, 50 cm frames with 54 top tube lenghts but I ride a 54 frame. I would think I could go with a 52 frame but I have a 140 stem on a 54cm long top tube. I guess I'm odd shaped for a cyclist?
ncscott is offline   Reply With Quote
Old 05-12-06, 09:11 AM   #11
vik 
cyclopath
 
vik's Avatar
 
Join Date: Apr 2006
Location: Victoria, BC
Bikes: Surly Krampus, Surly Straggler, Pivot Mach 6, Bike Friday Tikit, Bike Friday Tandem, Santa Cruz Nomad
Posts: 5,265
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Just make sure you measure your standover wearing your cycling shoes and use a book tucked (lightly) into your groin. Get someone else to do the measuring so you can get it afairly accurate.

Don't use your pant inseam measurement.
vik is offline   Reply With Quote
Old 05-12-06, 12:05 PM   #12
Ktea
Junior Member
Thread Starter
 
Join Date: May 2006
Location: Central VA
Bikes: 2006 Trek 520, 2009 Jamis Quest, 2012 Trek 7.2
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I did measure my actual inseam- not pants size- to come up with the 32 inches. I'm only 5'6", so I'm all leg. Maybe the 56 would be a bit of a reach to the bars?
Ktea is offline   Reply With Quote
Old 05-12-06, 01:38 PM   #13
EmmCeeBee
Senior Member
 
Join Date: Apr 2005
Location: SW Washington, USA
Bikes:
Posts: 373
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Ktea
I did measure my actual inseam- not pants size- to come up with the 32 inches. I'm only 5'6", so I'm all leg. Maybe the 56 would be a bit of a reach to the bars?
Now we can finally talk specifics -- that's valuable information!

If you're 5'6", I don't see how you can fit on a 56 LHT. I'm 5'8" and I ride a 54. I might have gone for a 56 -- I seem to be between the two -- but I wanted 26" wheels. I mainly based it on top tube length, stem reach can be tweaked easily with longer/shorter stems.

-- Mark
EmmCeeBee is offline   Reply With Quote
Old 05-12-06, 06:28 PM   #14
Ridelots24
Clinging to guns/religion
 
Ridelots24's Avatar
 
Join Date: Jan 2006
Location: Pgh, PA
Bikes: Litspd Cyx/ Paragon/ Surly LHT/ Madone 5.2/ Spclzd TT/ Boone/ Pisgah 27.5 | Pugs
Posts: 272
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have a LHT 52cm....I'm 5'7" with a 31" inseam.....The 54cm Top Tube length was my deciding factor on frame size. The 52cm LHT measurements compared best with my other 54cm road/cyclo cross bikes I am used to riding. Sounds like you have the correct size.....Good luck with the build....post some pics!
Ridelots24 is offline   Reply With Quote
Old 05-12-06, 11:28 PM   #15
halfspeed
Senior Member
 
halfspeed's Avatar
 
Join Date: Nov 2003
Location: SE Minnesota
Bikes: are better than yours.
Posts: 12,276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think Riv overstates the importance of seat tube length and others overstate the importance of top tube length. It's all important. Every frame is different and just because you got fitted at a 52 for one bike doesn't mean that fit will work as well on another.

For me, I'd be hard pressed to find a Surly that fits at all because the total geometry just doesn't work for me.
halfspeed is offline   Reply With Quote
Old 05-16-06, 07:58 AM   #16
Ktea
Junior Member
Thread Starter
 
Join Date: May 2006
Location: Central VA
Bikes: 2006 Trek 520, 2009 Jamis Quest, 2012 Trek 7.2
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
At this point I'm pretty sure I need to go up at least one size. I wonder if Surly would switch frames with me or if I'd need to sell it myself on ebay or something? It was my mistake since I ordered the wrong size, but since it's the sage green they might have folks that would buy it up really quickly. Does anyone know Surly's policy on returns of this nature?
Ktea is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 06:37 AM.