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Inbreeding... How big do I go??

1003 Views 15 Replies 8 Participants Last post by brant, Dec 8, 2005

Big29

Discussion Starter · Dec 6, 2005

I am considering getting rid of my 20" KM and getting an On-one just to try something different. I currently ride a large Fisher Paragon and I am 6' tall. I like long toptubes like the fishers (I run a 120mm stem on my Paragon). I am wondering if the 18" Inbred will feel a little too small and the 21" too big?

Experts, whaddeya think??

1 - 16 of 16 Posts

English Bob

· #2 · Dec 6, 2005

I'm a 6 foot owner

and my 18" 29 inbred feels fine with a 90mm stem. My 20" normal inbred with 80mm stem is just a bit 'longer' to my mind, very similar wheel base.

Cloxxki

· #3 · Dec 6, 2005

Without doing real math, it seems like the Inbred29 21" with a 110mm stem will fit you fine. Standover is probably more or less the same as the Fisher.
I know someone who's sold his KM to try the On-One for a change.

realbiker

· #4 · Dec 6, 2005

English Bob said:
and my 18" 29 inbred feels fine with a 90mm stem. My 20" normal inbred with 80mm stem is just a bit 'longer' to my mind, very similar wheel base.

What's your inseam - isn't 90 mm a bit short ???

Cloxxki

· #5 · Dec 6, 2005

Inbred stems don't even go longer than 100mm! As long as one sits on the bike comfortably...

English Bob

· #6 · Dec 6, 2005

keeps the steering snappy!

realbiker said:
What's your inseam - isn't 90 mm a bit short ???

32" trouser inside leg measurement, the seatpost sticks out about 10" from the frame.

Inbreds are long, that's why they have short stems. Most of my bikes are equal regarding effective top tube + stem length.

Nat

· #7 · Dec 6, 2005

English Bob said:
32" trouser inside leg measurement, the seatpost sticks out about 10" from the frame.

Inbreds are long, that's why they have short stems. Most of my bikes are equal regarding effective top tube + stem length.

It still baffles me why I fit comfortably on an 18" frame with a 110mm stem when I'm 5'9" with a 29" inseam, yet everyone else has shorter stems and is taller.

Cloxxki

· #8 · Dec 6, 2005

Leg muscle make up (seat fore/aft positioning) for high/low cadence, and difference in ride position preference and body layout can make more of a difference than just a couple inches.
With your shorter legs, and the seat tube at an angle, you also sit closer to the stem already. Worth one every 3 inches I guess, and remember, frame sizes come with 2" seat tube but 3/4" top tube inrcements.
My best friend is 3" shorter, runs his seat 3" lower, but dispite shorter arms can handle much more reach than I do. He coudl ride an 18" frame with 26" top tube and make it look perfectly normal.

realbiker

· #9 · Dec 6, 2005

I'm 6 feet with 35" inseam but I think I'll try to run 90 - 100 - 105 mm stems with conventional bars and a mary bar and I'll post my results ...

bso95

· #10 · Dec 6, 2005

18 might be the bike

I am 6 feet tall and 180 lbs and ride an 18 inch inbred with a marzocchi and a 110 stem and it feels great. I have a 33.5 inch inseam. Hope this helps.

Cloxxki

· #11 · Dec 6, 2005

Note that he has a LARGE Fisher, with barely a shorter TT than the 21" Inbred. And he runs a very long (for Fisher standards) 120mm stem on it. Definately 21" material for the Inbred. On the 18" he'd want a silly 140+mm stem for the same amount of reach he's used to.

PoorBehavior

· #12 · Dec 7, 2005

Reading this thread I am starting to worry.
I ordered the 18" 29'er inbred over the weekend. I currently ride a 19" Rockhopper that feels cramped in the cockpit. I use flat bars and the stock stem (no idea on the length).
My second bike is an old Diamondback sorento with a Surly 1x1 fork. I like the fit on it better than the RH and it is an 18" with a slightly longer top tube length, (measured scientifically with a Craftsman Tape measure), the stem is also longer.

The inbred Top Tube is only about a half inch longer than the RH, should I have even considered the 21" or is that 1/2" more than it seems?
Oh, 6ft or so with 32" or very close inseam. When I say "cramped" I want to stretch out more or lean forward more. I would have a better idea where I should be except for my low I.Q. and the lbs's that think I am Lance Armstrong when it comes to fitting my own bike.
(Hey! Looks good! The register is right over there. NEXT!)

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brant

· #13 · Dec 7, 2005

PoorBehavior said:
Reading this thread I am starting to worry.
Oh, 6ft or so with 32" or very close inseam.

I'm 6'1.5" with a 36in inseam.

I would not dream of riding a 21in Inbred.

I'm on an 18in

PoorBehavior

· #14 · Dec 7, 2005

[email protected] said:
I would not dream of riding a 21in Inbred.

I'm on an 18in

Hmmm, Well, that actually makes me feel a lot better. Thanks Brant. I won't ask how long before I can see my 29'er at my door, the wait is torture but it gives me more time to figure out how to tell the Boss that I may have kinda perhaps sorta
"cough!" bought another bike "cough!".

"Oh here, look dear, I got this here beanie just for you, see it says "On One" cause you are the only one for me sweety. See! I even had it painted on the bike, so I will always be thinking of you. . . just ignore that inbred thing there, mix up or something."
Yeah, that ain't gonna work.

Big29

Discussion Starter · #15 · Dec 8, 2005

Saddle Height...

[email protected] said:
I'm 6'1.5" with a 36in inseam.

I would not dream of riding a 21in Inbred.

I'm on an 18in

What is the measurement from the center of the bottom bracket to the top of the saddle on your bike, Brant? I am 6'0" with a 35.5" inseam using the old "book in the crotch measurement" in bare feet. When I rent a tuxedo I always have to get a tall jacket because I have somewhat long arms. I am just afraid that the top tube on the 18 in. is going to feel way to short. I feel as though I am on the border between the large Fishers and the XL Fishers. I just want to make the best choice.

Could you explain your set-up Brant?

Thanks

Jason

brant

· #16 · Dec 8, 2005

Big29 said:
What is the measurement from the center of the bottom bracket to the top of the saddle on your bike, Brant?

I have never measured that, as it reminds me of a journalist adversary I had once.

However, perhaps someone can do the maths quickly...

I run a 400mm twelfty post at almost full extension. Which I seem to recall means there's around 120mm of post in the frame.

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