IRO sizing- hate to do it-need input
 

I just need some quick inputs and i've read as many of the mark v threads that i've found but im still unsure.

I ordered a mark v from iro and i told them how tall i was and im sure thats a terrible way to measure for a bike but its all i got so far. I'm 5'10 and wear 32 inseam jeans although i think 30 would be exact.

I first ordered a 53 and then thought about a 56 but tony recommended a 59.

i also think the 56 is no longer in stock. If i had to choose, should i go with the 53 or 59? or should i hold off.

im the same w 30 inseam and ride a 58 or 59

59 IRO size? how does it feel? hows your standover? and the top tube length reach?

get the 59

I am 5'10 and I just got a 56cm. My real inseam (not jeans) is like 32.5cm. The fit is tight, but good. Running a 110mm stem things feel good. I would go for the 59cm if I were you.

you guys think i should wait instead? if that were an option?

hey seanbonham, if you could do it again would you have gone with the 59?

I'm 5'10" and wear 32" inseam pants, and my 56 angus fits me really well.

59 will be too big, I can almost guarantee that.

I'm 5'10" with a 30" inseam (pants) and have a 53 angus. the top tube is kinda low (or you might say long when compared to the standover) on IROs.

I think my arms are sorta stubby.

+1, except insert Mark V for Angus

the 59 has a 57cm tt, while the 56 has a 55.5cm tt.
i would say the 56 is a better fit if you want a bike
that you can throw around abit more. the 53 would
definately be too small and the 59 might work, but
you'd be better to hold out.

slopvechicle, how do you feel on the bike? can you tell me alittle about your experience with the 53?

Other 53cm road frames I've owned (Bianchi, Miyata) have felt smaller / shorter.

In general, I seem to like small bikes compared to the other ~5'10" folks I know. I think it's my stubby t-rex arms. I chose 53 'cause I was wary of buying a too big frame, which is ultimately harder to correct for.

You'll probably be okay with the 56.

i just spoke to riot boy and he convinced me that the 59 will fit me just fine.

im trusting it....

i'm the same size and a 57 toptube to me is too long. 55.5 is about perfect with a 110-120 stem. I think you're gonna wish you got the 56.

damn how i easily just got disauded.

5'10" here. 30" pants inseam, my real inseam is about 32"

My 56cm Rob Roy fits me wonderfully. I'm confident than a 59 would be too large.

adding myself to the pile of 5'10", 32" inseam people here... used to have a 53 mark V - too small.
tested a friends 59, too big... waiting for my 56 group buy frame to arrive and i think it's going to be perfect.

I am just shy of 5'11 with a 32 inseam and my buddies 59 felt a little big for me. I would lean torwards the 56 unless you have a strange build.

i too am looking towards the 56cm, the frame i have right now is a 61cm and its way too big. im also pretty new to bike sizing in general, but if im 6'1 with a 32.5" inseam what size stem should i go for?

that 56 might be a little tight for 6'1", but i'm guessing with a 120mm stem and setback seatpost you'll be fine.

why dont you just buy the 59?

well from what a guy at my lbs was telling me, that for a road frame i'd need a 57 or 58cm and for a track frame i'd need a 56 or 57cm. i'd rather the bike be a little too small than a little too big, does that make any sense? i also dont know how much of my foot is supposed to be touching the ground while im sitting on the seat, but i feel like i should be able to have some sort of footing when im stopped right?

assume i dont know anything about bikes, because i know very little right now, how should a bike fit someone properly? im under the impression that its all really person preference, but there seems to be a standard or something.

yeah, just buy the 59.
i read your post as looking forward to the 56... like you bought a group buy 56 and were waiting to get it.
but if you didn't buy it yet, definitely go for the 59!
i have a friend that is 6'1" and the 59 fits him perfectly.

this kinda stuff is so tricky, especially with buying a frame online..at least for me. even though they give you the dimensions, it's like reading russian.

jayrooney, im from the nyc area as well. do you know of any shops that sell IRO's, cause i'll just stop by one and try one for myself.

Bicycle Doctor on Grand st in Williamsburg usually has most sizes in stock.
you can test ride to see what fits.

standover height is something to consider, but you should consider top tube length first.
if the top tube is too long you'll be stretched out too far and your back may hurt.

im reading that standover height should be about an inch over the frame, but what about top tube length? i guess thats something that i'd have to see for myself, huh?

yeah, take a test ride and see what size you feel comfortable on.
also search the forum for frame sizing tips. this thread has some good stuff:
http://www.bikeforums.net/showthread...ing+calculator

check out the online sizing calculator discussed in that thread too:
http://www.competitivecyclist.com/za...LCULATOR_INTRO

thanks man, i appreciate it. hopefully i can make it over to the shop you told me about and i can get on one of these things myself. how is the markup on iro's in a shop compared to the site?