And we ate paint chip sandwiches, but hey, there were no bad effects, right!
(((* Fried hay *)))
- Thread starter johnbryanpeters
- Start date
This guy gets it
yeah...i rode yancey then and i ride yancey now. i'll take my bike from now, plz. but i'll take my legs from then!
LOL he's not wrong...I'm just saying that building a bike around being able to slam a 48" wheelbase, long chainstayed shred sled into a 130* corner at the end of a 45mph section through the woods is a lot different than traveling at 6mph through rocky, horribly designed trails gaining 25ft of elevation and losing 28ft over and over again for 3 hours...and that it's OK to carefully consider what you need to be comfortable riding those kinds of shit trails and design your bike around them, rather than designing it around the 24 seconds you spend going downhill out here.
LOL "yeah make bikes nimble!" He said atop his coil sprung, 48" wheelbased YT.
I'm the retard that's "only" running a 455mm reach
I'm the retard that's "only" running a 455mm reach
ride tomorrow afternoon?
You've seen my Turner right?
You got a time/place in mind? That might be doable.
455? That's longer than my megatrail
What's reach? Center of saddle/post to bar centerline?
5.Spot reach = 396mm
UnRiDaBrU?!?
UnRiDaBrU?!?
That is pretty short ‘these days’. What frame size and what stem are you running?
Frame size?
Like the IronMan nanotech suits.
Mine is 40mm, fork has 44mm rake. The short version of all this is now we size our bikes to our reach avec plus de précisment for our bodies. At a normally proportioned 5’7” I have a 435mm reach which I sometimes think is short and sometimes long, so probably about right for me.
Just on Yetis, today at the trails I saw three brothers, I wanna guess they were all late teens, all on 2021 slightly different, but basically ultra spec’d 160s. Fancy all the things. Rich Dad must be rich.
I've yet to figure out, when most people are quoting their reach measurements, is it reach of frame + stem length (effective reach)? Or just reach of the frame?
I'm 5'7", on a small 2015 Yeti SB5, which from what I can find says it has a 396mm reach. I've paired this with a 50mm stem. I suppose maybe that would put me around the same place as you?
It’s just reach of the frame, normally to a spot in the center of the top of the headtube.
Having a tall stack above that point reduces the effective reach. Stem length extends it so you have to add stem length to reach, and in a perfect world you allow for the angle of the stem too but on shorter stems it’s normally negligible.
Having a tall stack above that point reduces the effective reach. Stem length extends it so you have to add stem length to reach, and in a perfect world you allow for the angle of the stem too but on shorter stems it’s normally negligible.
Ah, that is quite different, especially considering we are the same height. Guess it goes to show that height isn't a great dictator of how to fit a bike. 475mm feels like it would be stretch for me.
Welcome to my "looks right" build technique.
I'll convert all you nerds eventually.
Sorry, that was a medium. Large is 406mm. I'm running a 50 or 60mm stem and I'm 6 ft tall.
Medium, but it's the old medium that was more a large.
Reach is the distance from BB to the center of the top of your headtube. Reach is a really effective way of measuring frame size while disregarding seat tube angle. Seat angle is absolutely ridiculous as the industry likes to report effective SA and not actual, meaning if you want a smaller frame or bigger, you end up with wildly variable actual angles.
Anyways, reach ignores headset stack, spacers, and stem length. The current trend is to stretch reach and steepen the seat angle, which keeps your arms not stretched out when seated and your weight centered, but when you stand you have a lot of space to move around. This is great for high speed downhills and reasonable for long climbs, but it's not the best geometry for constant ups and downs that you find out here in new england...
It’s good to have a pic. 
When you see it drawn like that it’s easy to see how a high stack of spacers below your stem can reduce reach a fair bit. If you have such a stack a slightly longer stem might help if you want more reach but with the associated loss of direct steering feel. Slightly longer forks may be better if you want a higher front end but they also have the effect of slacking the head angle and this also noticeably reduces effective reach if you add like 20mm+ travel, 10mm won’t make too much difference and is a reasonable stack add. Fork rake can make a tiny difference here too, but not much. Less would be better in this scenario.
When you see it drawn like that it’s easy to see how a high stack of spacers below your stem can reduce reach a fair bit. If you have such a stack a slightly longer stem might help if you want more reach but with the associated loss of direct steering feel. Slightly longer forks may be better if you want a higher front end but they also have the effect of slacking the head angle and this also noticeably reduces effective reach if you add like 20mm+ travel, 10mm won’t make too much difference and is a reasonable stack add. Fork rake can make a tiny difference here too, but not much. Less would be better in this scenario.
Of course. The whole thing matters, but it is better at a glance than (the equivalent) seat tube and top tube were together in the past.
182 cm tall with a positive ape index and really long torso. I have to ride an xl frame ( of course its old school with 26 wheels
Top tube length was a great measurement 25 years ago when HA and SA were almost identical on every bike.
That's why stack is also used
And unless you are shuttling all the time you are still going to spend most of the time in the saddle, so where that ends up is pretty important.
yea. reach and stack aren't the end-all be-all of sizing, it kinda came out as a quick way to get a ballpark answer of "is this bike gonna fit me?" and allow a quicker/more direct comparison across bikes/brands independent of other geometric frame measurements.
I always look at the contact point triangle, hands/feet/ass, and where your COG will end up within wheelbase for the type of riding you will be doing.
I busted out the tape measure and my motorcycle has a reach of 570mm and what is effectively a 0mm stem.
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