Today you have discussed the sizing of bicycles and what’s important for sizing in recent years, bikes of bikes, we’ve got longer. Wheelbases have got Longo and the reach measurement has got longer.
It gives you room to move around and it just makes it a more stable bike and we’re racing a bike down off-road, rough terrain. So that’s a positive thing.
So one thing I’m kind of keen to point out is that the reach is an impulse, but it’s not actually the most important measurement for economic sizing.
The more bikes I’ve made, the more I’ve sort of become familiar with them. What’s important is normally in an attack position, riding along with a down a hill.
The distance between your feet and your hands is important and we can accommodate quite big changes.
If the bike was two inches shorter, It doesn’t make much difference. If it was two inches bigger, it doesn’t make many shifts.
I bought it really accommodate that size. So although bikes have got longer, it hasn’t actually affected our ability to ride them. And people are always surprised. They get on a bike that cuts longer and straight away.
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They feel comfortable on it and they don’t understand that. The seated position is actually a bit more important. So now we’re set in pedaling position.
You fix your ass and Dante handles, and that becomes more important.
So, this effective top tube here, which is something they always used to compare when you were comparing your bikes now becomes the important sizing aspect.
It’s, he’s got some bars to bring it back a little bit, but it’s, now this would give me a bad back. I’m not in the right peddling position.
I can accommodate big rate changes, effective techy become, and when people are trying to size up bikes to fit them, it’s worth looking on my murmur page.
There are some, uh, effective top two measurements for different size frames. That’s probably a good point to look at. Compare that to your current bike.
You’ll be able to accommodate the longer one if you’re worried about the longer one. One other important aspect for sizing.
So bottom brackets at the top of the seat tube length measurement.
As I mentioned from the saddle rails. So the bottom bracket, when you are in your paddling permit position. So as soon as I know that dimension.
Then this is a one 50 mil Maghera dropper, and this has got a certain lens from the rails to the top of the seat base that it needs.
So I can then take the bottom bracket, saddle rails, minus that dimension.
Then we’ve got the CG blend and there’s a little bit of tolerance in and how much of this we use up here.
If you’re worried about seat tube length, it’s very simple. You need your pad peddling height need to know what dropper you want to run.
You can run a bottle and, uh, and a piggyback, but I’m looking at some frames at the moment on the smaller frames I’ve been moving the bottle mounts forwards.
Give you a bit more understanding of how, what’s important in custom sizing, any questions, put them in the comments below or send them to me if you’ve got something specific and hopefully, I try to help you out.