Brent Atkins sets an unofficial Canadian roller speed record of 148 km/h in Ottawa on March 16, 2013. He's riding a 120x15 fixed gear. The world record is 202 km/h.
@@Exotic_buttersBIGDUB Nope, it's a sprocket. Or in other words, a cogwheel. Cog is just a word for the teeth on a sprocket/cogwheel. But anyway, why does the distinction even matter in this situation other than to make you feel smarter?
@@foxjerseycol4433 No his ratio is 120/15 = 8:1. 148000m (148km) divided by 2.08 (meters moved per wheel revolution, assuming 19c tires) divided by 60 (minutes in an hour) divided by 8 (gearing), gives you roughly 148 rpm.
jokes aside, he probably has to spin thousands of rpm in order to get the wheel properly rolling, not to mention the lack of enough friction and overcoming gravity
imagine, all of a sudden the rollers broke, then the guy went like 100kph in a blink of an eye 😳 edited: 1 year ago I make this joke, thinking that everyone will have the same humor as i have, idk why the f they're educating me for this kind of joke
@@joaorichter9970 What's with the heat tho? you didn't get the joke? AHAHAHA and also, I've research it already about the topic that he's talking about, so yeah, doesn't need your opinion tho AHAHAHA
I got to race Mammoth Mountain at the world championship in 1989. On the downhill, John Tomac had a 61 tooth chainring and a solid disc wheel on the rear of his mountain bike. It looked like it was going to hit the ground it was so big . I hit 51 mph on a rigid stump comp, 48-12. @ 10,000 ft beside my buddy Lance. Good times
pretty cool how quickly he went from 30 to 50. It would be hilarious to try this bike on the ground. this guy is in top shape for sure but I kinda wonder what those track sprinter olympians and world champs with ginormous quads would do on a bike like this
@@tubefile100 It's a lot different trying to move the mass of the entire bike and rider compared to just the wheels on this roller. He wouldn't accelerate near as fast if this was on the road. That's not even factoring in wind resistance, either.
I remember as a kid, I was training on rollers in the living room. My mum came in and with a sly grin I asked her to change gear for me (old school braze on downtube shifters). My mum went to change gear and caught a massive static charge. I bet at 148km/h you'd build up one heck of a charge.
Вчера, вечером пятницы, мужик на кассе был от души раздосадован, когда стоя в очереди стукнуло 23-00 и он со словами "раз в месяц себе позволяю бутылочку пива и тут такой облом..." поник лицом. Сам не пью пиво, но такой картине маслом даже я посочувствовал, однако кассирша осталась непреклонна.
Planetary gearing inside the crank hub should get that ratio on a more normal sized chainring. That would make a bike like this somewhat streetable. However air resistance would probably kill him before he got up to the speed he's doing on the rollers.
Or just add another gear between the pedals and the wheel. A bit less weight and power loss than a planetary set. And it has been done to use for a road speed record.
This is what I imagined as a kid if I put the gear ratio this way will I go faster? But then when I got older I realized that there is a law of conversion. So you need a lot of power either way.
I mean only problem is the start, one of my fixie bikes are with crazy gear ratio but when I cruise it feels like heaven. Starting takes me like 6-7 seconds lol
