hititfaster Posted January 15, 2005 Report Share Posted January 15, 2005 Ok, so it was a shit pun. First thing that came to mind for a title ^_^ What I want to know is, what's the absolute maximum amount of torque (preferably in Nm, at the hub end) that Joe the average trials rider is likely to generate when he kicks the pedals? Tom (Up to something, as usual. ^_^ ) Link to comment Share on other sites More sharing options...
Ashley Smith Posted January 15, 2005 Report Share Posted January 15, 2005 try asking a hub manufacturer, they should know what forces go through the hub etc i will try and find out next time when i go to pick up my prototype hub up from hope ash Link to comment Share on other sites More sharing options...
hititfaster Posted January 15, 2005 Author Report Share Posted January 15, 2005 I asked George French, but he wasn't sure. If you could ask one of the guys at Hope I'd really appreciate it ^_^ Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 Max load a KMC Kool chain can take = 1300kg. Measure the diameter of a rear sprocket. Job done. Edit: Which comes to about 575Nm. Link to comment Share on other sites More sharing options...
Ashley Smith Posted January 15, 2005 Report Share Posted January 15, 2005 just been on hope site but theres nothing on there i will find out and pm you when i do, i suspect each hub manufacturers hubs will differ quite a lot though, why do you need to know this, is it a project of some sort regards ash Link to comment Share on other sites More sharing options...
Lee_Buchanan Posted January 15, 2005 Report Share Posted January 15, 2005 I have always thought that it was the outer diameter off the inner tooth of the ratchet body(where the pawls engage) where the torque is applied also the load on the axel and bearings. L8rzzzzzzzz Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 I have always thought that it was the outer diameter off the inner tooth of the ratchet body(where the pawls engage) where the torque is applied ← Yeah it is, but where is the torque applied FROM? Link to comment Share on other sites More sharing options...
Lee_Buchanan Posted January 15, 2005 Report Share Posted January 15, 2005 Its applied threw the chain to the cog which is attached to the ratchet body. Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 Its applied threw the chain to the cog which is attached to the ratchet body. ← Like i said then. Link to comment Share on other sites More sharing options...
Lee_Buchanan Posted January 15, 2005 Report Share Posted January 15, 2005 Max load a KMC Kool chain can take = 1300kg.job done so it isnt job done is it. :o Link to comment Share on other sites More sharing options...
Ashley Smith Posted January 15, 2005 Report Share Posted January 15, 2005 (edited) so it isnt job done is it. :o ← this guy is absolutely right he should get a job at hope :P he knows more than most of the guys there regards ash :o :P Edited January 15, 2005 by trialnoir Link to comment Share on other sites More sharing options...
dave85 Posted January 15, 2005 Report Share Posted January 15, 2005 so it isnt job done is it. :o ← You didnt see Adam's edit with a torque figure then did you? Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 so it isnt job done is it. :o ← Tis if you can do some (very) simple maths! Link to comment Share on other sites More sharing options...
Ashley Smith Posted January 15, 2005 Report Share Posted January 15, 2005 You didnt see Adam's edit with a torque figure then did you? ← i did, the figures for my hub seem to be different regards ash :o :o Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 i did, the figures for my hub seem to be different ← What 'figures' have you got then? And why not tell Tom in your original post? :o Link to comment Share on other sites More sharing options...
Lee_Buchanan Posted January 15, 2005 Report Share Posted January 15, 2005 The figures i have are of the designer himself. Owen Hardisty. Being the designer i persume he knows.! (Y) Roll me up and smoke me.! lee Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 Someones just fooked up there (Y) Haha. Unless youre both at the same house? Maybe those figures are wrong, since the Hope proto hubs are poo? Link to comment Share on other sites More sharing options...
Lee_Buchanan Posted January 15, 2005 Report Share Posted January 15, 2005 Yes and ? Seems i have the correct figures being that i know the designer and i ride the hub myself. (Y) as dus trial noir. Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 Seems i have the correct figures being that i know the designer and i ride the hub myself. (Y) ← What im saying is, one person's opinion isnt correct. And i dont get why you dont tell Tom them, especially if its vastly different to the one i worked out. Link to comment Share on other sites More sharing options...
Lee_Buchanan Posted January 15, 2005 Report Share Posted January 15, 2005 They are not grately different,being that it is still in prototyping it differs to the current hubs and it can change depending on which hub and sprocket size you use. Only finding otu tonight after seeign this post is why i didint post any sooner regarding tom? Lee Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 it can change depending on which hub and sprocket size you use. ← No shit sherlock! Edit: How can the torque applied to the hub differ with the hub you use?!?! 'What I want to know is, what's the absolute maximum amount of torque (preferably in Nm, at the hub end) that Joe the average trials rider is likely to generate when he kicks the pedals?' The figure i did was for a 21T sprocket, having snapped a KMC Kool chain. Cant get much more than that! You had the figure about 10 minutes ago (Y) Link to comment Share on other sites More sharing options...
Lee_Buchanan Posted January 15, 2005 Report Share Posted January 15, 2005 You had the figure about 10 minutes ago No trial noir has had the figure for at least 3 hours. After replying in the post at 6.27 Eat shit! Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 No trial noir has had the figure for at least 3 hours. After replying in the post at 6.27 ← We'll hes a tight b*****d for not letting Tom know as well then! Link to comment Share on other sites More sharing options...
Lee_Buchanan Posted January 15, 2005 Report Share Posted January 15, 2005 SMOKE ME! Link to comment Share on other sites More sharing options...
Tartridge Posted January 15, 2005 Report Share Posted January 15, 2005 Yes please (Y)" Id still like to know how the hub itself dictates how much torque is put through it though, enlighten me? Link to comment Share on other sites More sharing options...
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