Capcha Posted August 16, 2011 Posted August 16, 2011 Done that before at that speed...only stupid if you get killed doing it. The worst is when you swing off and the wind hits you...hold on
brad890 Posted August 16, 2011 Posted August 16, 2011 well if that goes wrong ie: hits a pot hole etc. he will definitely make it into the Darwin awards
DuncanCT Posted August 16, 2011 Posted August 16, 2011 What gear ratio would you need to achieve that speed?
chris_w_65 Posted August 16, 2011 Posted August 16, 2011 What gear ratio would you need to achieve that speed?  Maybe it is fake, I am sure there is no ratio available that will have you peddling at 100km/h
Caerus Posted August 16, 2011 Posted August 16, 2011 Maybe it is fake, I am sure there is no ratio available that will have you peddling at 100km/h  I'm with you on the possibility it's fake
Dragu Posted August 16, 2011 Author Posted August 16, 2011 Was also wondering about gear ratio at that speed. Maybe Exclusive can shed some light on this as he has done it before?
chris_w_65 Posted August 16, 2011 Posted August 16, 2011 What is the biggest front ring? I know you get one tooth bigger than standard (how many does standard have?)Smallest on the back is 11Tyre size is easyNow we just need someone with some math skills
DuncanCT Posted August 16, 2011 Posted August 16, 2011 The biggest chain ring that Shimano have is a 56 so, Sheldon Brown's site says a 56-11 will have you riding 64km/h at cadence of 100. You would need a 90-11 to make it to 100km/h! How large would a 90 tooth chain ring be?
chris_w_65 Posted August 16, 2011 Posted August 16, 2011 He is probably being towed and turning his legs to make it look real. You can do 100km/h down a hill but that is just gravity
RoboLuke Posted August 16, 2011 Posted August 16, 2011 I'm not a roadie but I don't think this is possible....
TNT1 Posted August 16, 2011 Posted August 16, 2011 The biggest chain ring that Shimano have is a 56 so, Sheldon Brown's site says a 56-11 will have you riding 64km/h at cadence of 100. You would need a 90-11 to make it to 100km/h! How large would a 90 tooth chain ring be? Dunno, but when John Howard did his thing, he had a gear so massive, he had to motor-pace to 91km/h before he could turn it under his own power, and then he rode it to only 130 rpm... It had compound gear,basically a 52-13 (4x) times 52-13 (4x), an 16:1 ratio.
TNT1 Posted August 16, 2011 Posted August 16, 2011 But John's record of 152mph has been bettered. Fred Rompelberg did 166mph behind a dragster in boneville.
Dicky DQ Posted August 16, 2011 Posted August 16, 2011 I'm with you on the possibility it's fake It is easy to do, done it often but normally only up to about 90kph.If you start off and jump in at about 40/50 you just get sucked along. You just need to spinnn a few timed to get you back into place. on a flat road you can almost free for km's the drag is so big. the only real issue is getting out of the slip, very scary if you cant keep up. 70 - 85 is the best speed to sit at. Just be ready to grab onto the truck if it stops faster than you can.
TNT1 Posted August 16, 2011 Posted August 16, 2011 You can do 100km/h down a hill but that is just gravity Un-motorpaced, downhill, the record is around the 222km/h mark. Noob.  Personally, I've done 126km/h downhill into Sabie, behind our team car. The "ish" part is cause I had to overtake him and this was done in the days of toe-clips, cloth cap, and no cycle computer We was real cyclists then.
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