Neila Posted May 18 Report Share Posted May 18 After Freddie's crash this weekend, it appears that we now have a lot more crashes than normal, some very big 😲. What is the cause of these, have seen mentioned that the tyres are unpredictable 😲 will the powers that be, FIM, here and Poland etc do anything about it ? Quote Link to comment Share on other sites More sharing options...
1 valve Posted May 18 Report Share Posted May 18 38 minutes ago, Neila said: After Freddie's crash this weekend, it appears that we now have a lot more crashes than normal, some very big 😲. What is the cause of these. The riders? 2 Quote Link to comment Share on other sites More sharing options...
Daniel Smith Posted May 18 Report Share Posted May 18 36 minutes ago, Neila said: After Freddie's crash this weekend, it appears that we now have a lot more crashes than normal, some very big 😲. What is the cause of these, have seen mentioned that the tyres are unpredictable 😲 will the powers that be, FIM, here and Poland etc do anything about it ? There are many reasons but for me, it's the constant search for speed, more speed, even greater speed than the last. Speedway globally should go for an engine reset & go down the standardised 'sealed units' route. Get rid of expensive 3rd party parts tuners. 7 Quote Link to comment Share on other sites More sharing options...
eric i Posted May 18 Report Share Posted May 18 1 hour ago, Daniel Smith said: There are many reasons but for me, it's the constant search for speed, more speed, even greater speed than the last. Speedway globally should go for an engine reset & go down the standardised 'sealed units' route. Get rid of expensive 3rd party parts tuners. I agree, a point I have made many times. Quote Link to comment Share on other sites More sharing options...
Whitelinehugger Posted May 18 Report Share Posted May 18 Clumsiness comes to mind 1 Quote Link to comment Share on other sites More sharing options...
THE DEAN MACHINE Posted May 18 Report Share Posted May 18 (edited) 3 hours ago, Neila said: After Freddie's crash this weekend, it appears that we now have a lot more crashes than normal, some very big 😲. What is the cause of these, have seen mentioned that the tyres are unpredictable 😲 will the powers that be, FIM, here and Poland etc do anything about it ? To be fair Freddie’s crash wasn’t caused by speed or the track or the tyres , rew moved out and Freddie didnt shut off and ran out of room and hit the fence by the start gate, not sure if Freddie thought he would bounce off the kick board as seems to be the norm these days or he misjudged how close he was to the kick board, he was excluded as the cause of the crash, anyway speedy recovery Freddie Edited May 18 by THE DEAN MACHINE Quote Link to comment Share on other sites More sharing options...
THE DEAN MACHINE Posted May 18 Report Share Posted May 18 2 hours ago, Daniel Smith said: There are many reasons but for me, it's the constant search for speed, more speed, even greater speed than the last. Speedway globally should go for an engine reset & go down the standardised 'sealed units' route. Get rid of expensive 3rd party parts tuners. As I’ve pointed out on numerous occasions for god knows how many years with evidence of it, bikes today are in relative speed no faster than they were 40 years ago, what is considerably faster is the speed of the back wheel to the speed of the bike, when the bike is doing 50-60mph the back wheel is doing 80-100mph, hence the back tyres wear out in 5mins and the front tyre will last a season, it has been a problem for years but nobody especially riders and tuners want it addressed 4 Quote Link to comment Share on other sites More sharing options...
Whitelinehugger Posted May 18 Report Share Posted May 18 26 minutes ago, THE DEAN MACHINE said: As I’ve pointed out on numerous occasions for god knows how many years with evidence of it, bikes today are in relative speed no faster than they were 40 years ago, what is considerably faster is the speed of the back wheel to the speed of the bike, when the bike is doing 50-60mph the back wheel is doing 80-100mph, hence the back tyres wear out in 5mins and the front tyre will last a season, it has been a problem for years but nobody especially riders and tuners want it addressed And that address is 10 Downing Street london Quote Link to comment Share on other sites More sharing options...
Daniel Smith Posted May 18 Report Share Posted May 18 1 hour ago, THE DEAN MACHINE said: As I’ve pointed out on numerous occasions for god knows how many years with evidence of it, bikes today are in relative speed no faster than they were 40 years ago, what is considerably faster is the speed of the back wheel to the speed of the bike, when the bike is doing 50-60mph the back wheel is doing 80-100mph, hence the back tyres wear out in 5mins and the front tyre will last a season, it has been a problem for years but nobody especially riders and tuners want it addressed Correct, we both mean the same thing, it's 2 fold. Rider's & engineers are constantly looking for more power & speed. While at the same time, rider's want less & less dirt & water on tracks, in the name of "safety". Both are counteractive hence the lack of broken track records. In fact, most races are now 2-4 seconds slower than 15-20 years ago. If seeled engines are not an option, the FIM could introduce a rear sprocket regulation, max of 57-58 teeth. This would force riders & tuners to look for torque rather than horse power, this would make bike that more adaptable for all conditions. Quote Link to comment Share on other sites More sharing options...
TapesRup Posted May 18 Report Share Posted May 18 Horse power. Farmers used them years ago on the land. Quote Link to comment Share on other sites More sharing options...
THE DEAN MACHINE Posted May 18 Report Share Posted May 18 (edited) 32 minutes ago, Daniel Smith said: Correct, we both mean the same thing, it's 2 fold. Rider's & engineers are constantly looking for more power & speed. While at the same time, rider's want less & less dirt & water on tracks, in the name of "safety". Both are counteractive hence the lack of broken track records. In fact, most races are now 2-4 seconds slower than 15-20 years ago. If seeled engines are not an option, the FIM could introduce a rear sprocket regulation, max of 57-58 teeth. This would force riders & tuners to look for torque rather than horse power, this would make bike that more adaptable for all conditions. Regulate the engines to max 10,000 revs is the answer but don’t do it by just putting the rev limiter set at 10,000, it needs to be so the engines won’t get up to 10,000 revs, limit cam lift to 10mm,maybe smaller inlet ports or a 2 valve head which isn’t actually that costly, sealed engines could work with cooperation on all sides but only to ensure only homolgated parts can be used, no 2 riders have same engine characteristics so a standard one size fits all wouldn’t work, gearing also wouldn’t work because although they may use a similar ratio they all use different configurations to achieve it, if you look at someone like MJJ he uses really small back sprockets probably in high 40s but will be using 13 on countershaft to achieve it but it will still be same ratio as others or alternatively chuck a load of dirt on every track and tell the riders to man the f up and get on with it, they will soon plum for softer engines Edited May 18 by THE DEAN MACHINE 2 Quote Link to comment Share on other sites More sharing options...
IainB Posted May 18 Report Share Posted May 18 If you look at races from the late 70's riders seemed to be reaching the maximum speed of their machines towards the end of the straight if you look at them today they look as though they'd just keep on accelerating way beyond that. Quote Link to comment Share on other sites More sharing options...
THE DEAN MACHINE Posted May 18 Report Share Posted May 18 11 minutes ago, IainB said: If you look at races from the late 70's riders seemed to be reaching the maximum speed of their machines towards the end of the straight if you look at them today they look as though they'd just keep on accelerating way beyond that. In the last could of years I’ve been racing a 1952 jap 4b in a 2 valve Jawa chassis and it’s an animal to ride, it maxes out about 6000 revs and because I come from a latter era( last of upright/laydown)it took some getting used to but you just can’t hold it flat out going into a turn because it just wants to go straight on, infact the first time I rode it, I just thought how different can it be and in the air fence I went😂today’s riders are peaking the engine at the end of the straight but instead of blipping the throttle to get into the corner they just holding it open, that bit is pretty much where speedway is actually faster today, they rest is the same Quote Link to comment Share on other sites More sharing options...
Odds On Posted May 19 Report Share Posted May 19 was told in the nineties it was looked at by several top riders to use wider back tyres/wheels. Quote Link to comment Share on other sites More sharing options...
THE DEAN MACHINE Posted May 19 Report Share Posted May 19 1 hour ago, Odds On said: was told in the nineties it was looked at by several top riders to use wider back tyres/wheels. They do use wider wheels today than in the 90s Quote Link to comment Share on other sites More sharing options...
Youhave2minutes Posted May 19 Report Share Posted May 19 32 minutes ago, THE DEAN MACHINE said: They do use wider wheels today than in the 90s Quote Link to comment Share on other sites More sharing options...
Odds On Posted May 19 Report Share Posted May 19 38 minutes ago, THE DEAN MACHINE said: They do use wider wheels today than in the 90s They were looking at a lot wider than the one's today.... Quote Link to comment Share on other sites More sharing options...
Youhave2minutes Posted May 19 Report Share Posted May 19 3 minutes ago, Odds On said: They were looking at a lot wider than the one's today.... Like the size I posted above 1 Quote Link to comment Share on other sites More sharing options...
THE DEAN MACHINE Posted May 19 Report Share Posted May 19 2 hours ago, Odds On said: They were looking at a lot wider than the one's today.... I doubt that, they are already running rims really close to the chain guides and the chains, to run any wider like for a motox tyre you would need wider hubs mean wider frames and then the countershaft sprocket wouldn’t be in line and you cant move that because the primary chain wouldn’t be in line for the engine 1 Quote Link to comment Share on other sites More sharing options...
rearingtogo Posted May 20 Report Share Posted May 20 If they widen everything as mentioned wouldn’t it be better to use a sidecar Quote Link to comment Share on other sites More sharing options...
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