Youlike Posted September 14, 2020 Share Posted September 14, 2020 2 Link to comment Share on other sites More sharing options...
Kwasaki Posted September 15, 2020 Share Posted September 15, 2020 High 9's for a 150cc two stoke on nitrus is impressive, if I understood that to be the case. My old bike can get into 1/4 mile low 10's but it's 900cc. 1 Link to comment Share on other sites More sharing options...
Kwasaki Posted September 15, 2020 Share Posted September 15, 2020 The other thing I don't understand about Thailand is the skinny tyres fitted to those machines. I saw another PCX 150 today with skinny bicycle tyres looked soo... stupid, why do Thais think this way with so much information available about what to do. Link to comment Share on other sites More sharing options...
Youlike Posted September 15, 2020 Author Share Posted September 15, 2020 16 minutes ago, Kwasaki said: I saw another PCX 150 today with skinny bicycle tyres looked soo... stupid, why do Thais think this way with so much information available about what to do. Well thin tyres go faster, that's all that counts for a Thai...longer breaking distance is not important for them. It's also why they always pump the tyres hard as a rock. 1 Link to comment Share on other sites More sharing options...
Kwasaki Posted September 15, 2020 Share Posted September 15, 2020 40 minutes ago, Youlike said: Well thin tyres go faster, that's all that counts for a Thai...longer breaking distance is not important for them. It's also why they always pump the tyres hard as a rock. I must inform MotoGP of that information. ???? Link to comment Share on other sites More sharing options...
Enoon Posted September 15, 2020 Share Posted September 15, 2020 12 minutes ago, Kwasaki said: I must inform MotoGP of that information. ???? If they decide to go straight-line drag racing, on ultralight motorcycles, they will have worked it out for themselves. (They probably know already) Of course the configuration is not good for general purpose road work. The guys you see on the road are just emulating their "heroes", Damn the science/sense. Boys, and Boymen, are like that. 1 1 Link to comment Share on other sites More sharing options...
Youlike Posted September 15, 2020 Author Share Posted September 15, 2020 Link to comment Share on other sites More sharing options...
Agusts Posted September 16, 2020 Share Posted September 16, 2020 Skinny tires also lighter, every little helps....???? 1 Link to comment Share on other sites More sharing options...
Kwasaki Posted September 16, 2020 Share Posted September 16, 2020 4 hours ago, Agusts said: Skinny tires also lighter, every little helps....???? Jokes aside all I get back from Thais is they think there faster, less wind resistance etc which is nonsense. Most of the world know a proper drag machines have wide sticky tyres. No brainer I suppose when it comes to no long time access to big bikes. Non peds are in their culture and for them its being in their own Thai fantasy world. Still that said some impressive times for small bikes and an exclusive event for them I guess. Link to comment Share on other sites More sharing options...
papa al Posted September 16, 2020 Share Posted September 16, 2020 (edited) 26 minutes ago, Kwasaki said: for them its being in their own Thai fantasy world. ///// Still that said some impressive times for small bikes and an exclusive event for them I guess. papa in his own fantasy world for sure //////// Are you suggesting their times would be faster with more massive rear wheel? Edited September 16, 2020 by papa al Link to comment Share on other sites More sharing options...
papa al Posted September 16, 2020 Share Posted September 16, 2020 Just now, papa al said: papa in his own fantasy world for sure //////// Are you suggesting their times would be faster with more massive rear wheel? Link to comment Share on other sites More sharing options...
Kwasaki Posted September 16, 2020 Share Posted September 16, 2020 (edited) 15 minutes ago, papa al said: papa in his own fantasy world for sure //////// Are you suggesting their times would be faster with more massive rear wheel? Yes. ???? but not massive just wider. Edited September 16, 2020 by Kwasaki 1 Link to comment Share on other sites More sharing options...
Agusts Posted September 16, 2020 Share Posted September 16, 2020 Maybe definition of drag race is different here, maybe they are looking at top speed rather than fixed distance, who knows...???? Link to comment Share on other sites More sharing options...
papa al Posted September 16, 2020 Share Posted September 16, 2020 7 hours ago, Kwasaki said: Yes. ???? but not massive just wider. More width, more massive. Mass. That thing measured in grams. Link to comment Share on other sites More sharing options...
Kwasaki Posted September 16, 2020 Share Posted September 16, 2020 1 hour ago, papa al said: More width, more massive. Mass. That thing measured in grams. You've lost me, those things they call motorbikes in high 9's in the vid were run on nitrous so if they had a better tyre that gripped it'll be a better time. Link to comment Share on other sites More sharing options...
Kwasaki Posted September 16, 2020 Share Posted September 16, 2020 4 hours ago, Agusts said: Maybe definition of drag race is different here, maybe they are looking at top speed rather than fixed distance, who knows...???? In the vid was time and speed on a lite up time board. Impressive time. Link to comment Share on other sites More sharing options...
Popular Post papa al Posted September 17, 2020 Popular Post Share Posted September 17, 2020 10 hours ago, Kwasaki said: You've lost me, those things they call motorbikes in high 9's in the vid were run on nitrous so if they had a better tyre that gripped it'll be a better time. Sorry. IpHO, this is drag-racing at its best. If those boys could bring their times down by running fatter tires, they would. They are not running skinnies just to look cool. Force = mass x acceleration. A slight increase in traction for a fraction at start (where these dinky engines are making small power anyway) doesn't overshadow reduced mass for 9 seconds running on-the-pipe. In drag-racing, the spinning tire acts as a clutch, allowing the engine to rev into power band. / The easiest time gains would be using even smaller (less massive) riders. 9 y/o kids maybe. 3 Link to comment Share on other sites More sharing options...
papa al Posted September 17, 2020 Share Posted September 17, 2020 11 hours ago, Kwasaki said: In the vid was time and speed on a lite up time board. Impressive time. Are they running 1/4 mile, or what? Link to comment Share on other sites More sharing options...
Kwasaki Posted September 17, 2020 Share Posted September 17, 2020 (edited) 2 hours ago, papa al said: Are they running 1/4 mile, or what? I'm skeptical but the commentator at the beginning of the video said 1/4 mile from what I heard but he could be wrong because there's 1/8 mile drags as well which I thought it was mainly because of the times of the small bike engines. On the time board at the end it just showed time and speed. It seemed to me the run time on film was very short. I said I was impressed because it was much the same 1/4 mile time as a Hyabusa which find hard to believe. A 150cc 2 stroke is similar power to a 300cc 4 stroke but nothing like the power of a 1000cc or more motorcycle in a 1/4 mile drag. There's also a 1000 yard drag. I wouldn't bother going to a Thai one myself l'd find it a drag. ???????? Edited September 17, 2020 by Kwasaki Link to comment Share on other sites More sharing options...
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