HOW TO FIT A MOUNTAIN BIKE TO YOUR BODY | Free Fit Kit

Hello Joy pilots, welcome back to the channel. We recently made a video about sizing. I love the video. We are

free

zing. It's like five degrees in my garage. This is a difficult shoot. It was a difficult shoot. But the content is really good. There's been a lot of Basically people asking really good questions, it's almost a thousand comments, I think it's okay, we have the best subscribers, a lot of comments from the UK, I've never traveled there, but that's a dream for me, maybe someday after Covid let's camp there and have a joyrider experience. Yes, let's try to make that happen.

A lot of people sent me photos and videos of them on stools. My favorite was a guy who used the dining room chairs while his wife was away, but that's compromise. I hope he left something out and didn't do it. just destroy those chairs, but you can always get new chairs. The saddles are cheaper than the sb-150 but a good fit is forever and speaking of that, you will know

your

rad number today and that is forever, we will get into some details. about knuckle height and then how to make a kit that you can take with you anywhere at

your

pocket

bike

shop demo and know exactly if a

bike

will fit you or not.

I'm really excited about the way the bike geometry is developing right now. forcing compromises so a little bottom the seed tubes have become significantly steeper in recent model years. I've talked to people in the bicycle industry. This is what happened. The market demands that they want big wheels. They want a lot of suspension and they want short wheels. chainstays with a normal seat angle, say 74 degrees, there is no room, so a really easy way to solve the packing problem is to increase the seat angles. You know, normal seat angles go from 74 degrees to 76, on some bikes there's like 78. and that and that creates more room for the suspension, but then when you're in the saddle, the seats are now closer to the handlebars , so the seated reach is shorter than what people are used to.

Each degree up the seat tube moves the seat forward approximately. 20 millimeters, then you can imagine why bike manufacturers started adding 20, 40 or more millimeters to the reach of the bike, giving you a familiar reach when you're sitting and that's how most people choose bikes, You walk through the parking lot and say, oh this. feels right in our world, we're concerned with Ryder area distance, which is the distance between your hands and your feet, and our goal is to make that distance and angle such that you can dynamically lock onto the bike if you set up a bike.

To optimize that with modern geometry the seated reach when you're in the saddle will be significantly shorter than what you're used to, well I understand there's a theory that a longer seated reach helps you climb better you know? What there is is no data to show that adding 50 millimeters to my stem makes me climb better. That does not exist. We know from our experience that if you set your bike at an optimal speed you will learn to pedal with the shorter stem. The power numbers won't change, actually that could improve because you have more sprint power.

That said, if you're a distance runner or for whatever reason prefer a more extended reach while sitting, do what makes you happy, just understand that as that speed increases. Also, you're no longer dynamically locked into the bike, you're more like a piece of meat hurtling toward an uncertain destination, so in our last video we gave you multipliers, we said take your height in centimeters and multiply it by x to get the target frame reach is fine, it's based on a 40 millimeter stem and a normal handlebar is based on average proportions, that's fine, but that number will get you in the ballpark and is better than the size charts you'll find in the 100's from a manufacturer, you can't.

Trust them, what we will do next is measure our

body

's radiation. A couple of you in the comments said, "Hey, would measuring your radiation this way work?" They were right, yes, they knew it. you gave me the idea and I ignored it, yeah, and some of you commenters gave me the idea and I ignored it and I was walking and it came to me as my idea and now I love it, okay, so let's do that. this is how you measure the height of your knuckles aka

body

rad so wear your cycling shoes uh put your feet in biking position if you're a

mountain

biker and close your eyes and do this , it will be incredibly close, that's perfect for you. have your hands while riding with alex, you'll hold a dry erase marker on that grip like it's a handlebar, now this is the part most people get wrong, first of all, move your head away from your feet as much as you can.

Your shoulders as far from your ears as you can, yes, exactly, bring them together and pull them down, arms straight and punch down, make your mark there, okay, that's it, I like centimeters, they're more precise what inches, what do you think it is friend? 31 inches, but I don't know how many centimeters 80, which is approximately 32 and a half, yes, that's what we have. I thought my rad was 31 inches, let me go there again, yeah. and by the way, if you think that number is crazy, it's very easy to make a mistake, what is the variation, then your stance, yeah, I think I did this and I think the number I have at home is 31 and I guess here is Why when I look down while making the mark show, it moves an inch just below and most people and I can see their shoulders and it goes up?

There's a three inch variation that you can create, so make sure you hit down, yeah. Yes, and don't look and don't look, I still measure myself in high heels, yes, that's why I'm six feet tall. Measuring things is difficult. The goal here is that we are going to measure from the bottom bracket to the center parallel to the frame. to the inner section of your grips and the way we do it is you need a rope, okay, and you're going to run it from the middle of the top of a grip, so you put a little elastic band around the rope just to hold her. just to keep it in place, yeah, and then we'll cross paths, look at that mess of wires I have there, you have to report it because someone is going to give me a hard time.

This cable situation is terrible, it's terrible. this bike shouldn't fit me, it's my son's bike, he is a little taller than me, so in theory it will be more, yes it will be long, it should be a little long, about a centimeter under the rope it's the intersection of your fist, so there's an imaginary line that we're actually measuring too, yeah, it's right there, yeah, it's really the center of this grip that we obviously can't get a rope into, yeah, and it goes through here. , the zero points in the middle of the crank. center of the bottom bracket and we'll go parallel to the frame and we're measuring up to that point the four is about a centimeter below the right chord and that's what we'll call this bike 84. and if it were like that it fits perfectly for me, it would be there, it would be there, yeah so this bike is pretty big for me, how big would the red plus be if I wanted to ride rad plus, if you want a ride rad plus would I limit it? about 8 20.

I could put this bike in red plus if I made a 32 millimeter stem, yeah, and made a straighter bar and I could get it. You can go red plus, by the way, I'm five nine. it's a medium stride and it's too big for you oh you want to measure your bmx buddy if you have a rad number it also works on a bmx bike this is a bike that can't be too long no you can't so I'm using the same philosophy with the rope from the middle of the top of one grip to the other. I'm really excited to see where this ends.

Yes, interesting, friend. Is short. Now it's short. I'm fine, for sure. it works, it's 77. so this is rad minus, totally cool, that's where i would like it to be, but for this type of bike game rad minus on my jump dirt bike is a little less when the rat is neutral, you have all your torque and a lot of range of motion when the rad is shortened you keep almost all the torque yes but you gain range of motion so for a

free

style bmx bike or a dirt jump bike rad minus makes a lot of sense when you go rad plus there is an immediate drop, a massive drop in torque, you can pull 300 lbs up to here, but I don't listen to almost everyone I work with, we end up in rad neutral or rad minus, another way I sometimes check a bike, oh yeah, that's cool, you know? what I'm going to do, yeah, and that's why this bike is in the stadium.

Bmxers are always on the ground because of the way the train tracks do this, they practice tricks like this and even if you don't practice tricks you just find yourself in this position so next time you do a manual loop do like if you wanted to measure your route exactly, yeah, just get into position and extend and you can see this bike feels really good and the cool thing is you can see that 30 millimeter delta. between your knuckle and the bar that's exactly where it shows up if you're in a demo, you could do the turn and you're willing to be this guy.

I don't know how many of you there are, but you can do it. This too with a

mountain

bike and you will have a pretty good idea of ​​how that bike fits you. That is wonderful. There's 80 right there, if you turn it around it's 31 and a half, so it was about a half inch away when I measured it myself. You don't have to go by the number, you just have to have something you can bring with you. How often do you have a tape measure? Very rarely, but if I were to go to a bike shop, I can take this number and then tie a knot and a piece of rope, tie that knot right there, yes, at 800 or 80 centimeters, sure, yes, now I can carry this anywhere, all I have to do is walk to a bike, my bike, yeah, okay, I'm at the store. um hopefully I brought some rubber bands and another rope to stretch them out here, but even if I didn't, you could look at it.

I can look from one grip to the other and look at this and know that this is where Lee's rat is and I'm going to ride. less on my trail bikes so this bike is about 77 so it's easy to add a little power, try taking off 10 millimeters right here, I can't do it, it's a pain if you're using the calculator, my advice. and what I've said in the comments is to keep it a little short, yeah and by the way Alex, that's the exact opposite of the current wisdom out there, like every bike manufacturer you call tells you to get on, this It's super cynical if you go up too. short you have to buy another stem if you go too long you have to buy a new bike maybe that's why not, I hope it's not because of that and I don't think it is, you take out one of these with a knot on each end and you start getting on the bikes , they will know that you are a joyrider, we have to make a jewel bike with the uh string brand, this is me, I think that's what's up, alex, that's what amuses me.

I would cut the rest of the rope because this is not tm, this is a basketball player or something, you know, this is the alex size, it's 31.5 inches, it's 80 centimeters, it's this piece of rope with two knots in it, yeah , pretty cool, what's up, what's up, what's up, Jeff Lenosky, I know I lost to you, the great man. So if you like this video, you know what to do, hit the like button and we'll see you next time on Joy of Life.