Martin Reynolds Posted September 23, 2012 Report Share Posted September 23, 2012 Is it the VIZ one2zero you mean? Yeh Quote Link to comment Share on other sites More sharing options...
Ben Gosden Posted September 23, 2012 Report Share Posted September 23, 2012 Yeh Yeh Thanks for pointing that out to me i never realised that freewheel had that many engagement points, ill probably end up buying one now just to see what their like. Quote Link to comment Share on other sites More sharing options...
bing Posted September 23, 2012 Author Report Share Posted September 23, 2012 (edited) A new freewheel with higher engagement points like say the highest known atm is 108.9 can you imagine the extra power outlet on a 120.9. it would be immense. They could also invent/produce stronger pistons for hydraulic brakes to add to the braking power would be great!. it would effectively be a 120.10, as the 9 refers to the number of pawls. eg 1 pawl every 12 teeth, therefore 9 x 12 = 108. so the viz will have 10 pawls, and 120 teeth. freewheels are usually in multiples of 12, ie tensile 60 and 96 click, viz 72, echo 108, rockman 108. Edited September 23, 2012 by bing 2 Quote Link to comment Share on other sites More sharing options...
trials hoe Posted September 23, 2012 Report Share Posted September 23, 2012 so two sets of 3 and one set of 4 then? haha personaly id rather see more pawls engaging at one time rather than more engagments, my pro 2 trials feels more solid than my echo 108 if that makes sence? Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted September 23, 2012 Report Share Posted September 23, 2012 Not necessarily, they'd probably stick with 9 as its a handy, easy number. The difference between 109 and 120 eps is going to be pretty un-noticeable/negligible though really. Quote Link to comment Share on other sites More sharing options...
bing Posted September 23, 2012 Author Report Share Posted September 23, 2012 (edited) so two sets of 3 and one set of 4 then? haha personaly id rather see more pawls engaging at one time rather than more engagments, my pro 2 trials feels more solid than my echo 108 if that makes sence? no, not really. the freewheel is 120 click, so there will be 10 pawls, engaging every 12 teeth. that gives you the 120 click. Luke, 9 doesn't multiply onto 120. it wouldn't work, there wouldn't be even engagements. chances are one pawl would be in the wrong place Edited September 23, 2012 by bing Quote Link to comment Share on other sites More sharing options...
trials hoe Posted September 23, 2012 Report Share Posted September 23, 2012 its effectivly 40ep per 3 pawls, 9 pawls so 3 x 40 = 120 ep 1 Quote Link to comment Share on other sites More sharing options...
Martin Reynolds Posted September 23, 2012 Report Share Posted September 23, 2012 no, not really. the freewheel is 120 click, so there will be 10 pawls, engaging every 12 teeth. that gives you the 120 click. Luke, 9 doesn't multiply onto 120. it wouldn't work, there wouldn't be even engagements. chances are one pawl would be in the wrong place It doesnt work like that. 3 pawls engage at the same time to help spread the load. Quote Link to comment Share on other sites More sharing options...
dann2707 Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) Luke, 9 doesn't multiply onto 120. You'd think you would need a degree in maths to understand that Bing... Edited September 23, 2012 by dann2707 1 Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted September 23, 2012 Report Share Posted September 23, 2012 What they said. If all 10 panels engaged at once you'd need much smaller teeth on the ratchet ring to give 120 EP which is going to give much less solid engagement and be skipping left right and centre. Not ideal. 9 pawls gives 3 sets of 3, which divides beautifully into 120 giving a 40 tooth ratchet ring. Slightly smaller teeth than the 109, which is a minor trade off for the minor advantage of a few EPs. Quote Link to comment Share on other sites More sharing options...
bing Posted September 23, 2012 Author Report Share Posted September 23, 2012 (edited) It doesnt work like that. 3 pawls engage at the same time to help spread the load. ok, I'll bow down to your superior knowledge in this one. didnt think of it like that. yeah, luke you are right, thinking a little more about it. dan cox, go finger your bum. don't listen to me, I'm just a silly old man Edited September 23, 2012 by bing Quote Link to comment Share on other sites More sharing options...
trials hoe Posted September 23, 2012 Report Share Posted September 23, 2012 much smaller teeth on the ratchet ring which is going to give much less solid engagement and be skipping left right and centre. Not ideal. like the halo supadrive......... shocking piece of crap Quote Link to comment Share on other sites More sharing options...
Blake Posted September 23, 2012 Report Share Posted September 23, 2012 116 hope pro 2 would be insane, maybe alter the design to at least 60 click though Quote Link to comment Share on other sites More sharing options...
Martin Reynolds Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) 116 hope pro 2 would be insane, maybe alter the design to at least 60 click though running a 18/12 gear ratio though it'd be the same as having a 72 click ffw though (if u had the pro 2 trials hub. i mean) Edited September 23, 2012 by Martin Reynolds Quote Link to comment Share on other sites More sharing options...
bing Posted September 23, 2012 Author Report Share Posted September 23, 2012 my mate showed me the internals from a halo SuperDrive, it's basically a splined ring and 3 splined plates with slightly opposing ramp angles. looks very unreliable if it gets shitted up Quote Link to comment Share on other sites More sharing options...
Blake Posted September 23, 2012 Report Share Posted September 23, 2012 running a 18/12 gear ratio though it'd be the same as having a 72 click ffw though (if u had the pro 2 trials hub. i mean) I want to agree but I don''t understand why Quote Link to comment Share on other sites More sharing options...
trials hoe Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) 20mm bolt though urbans would be ace http://www.truepreci...s/mtb-rear-hub/ a fw version of this too. seen a bearing version (guessing thats the same as what the hubs running) no teeth no noise just instant engagement. edit: a pic of the bearings internals..... witchcraft! Edited September 23, 2012 by trials hoe 1 Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) I want to agree but I don''t understand why yeah,explain us that precisely. i dont think ---gear ratio x ep does it. Edited September 23, 2012 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
Martin Reynolds Posted September 23, 2012 Report Share Posted September 23, 2012 yeah,explain us that precisely. i dont think ---gear ratio x ep does it. I saw you deleted your part about movement, but that's what i wanted to try and explain. With ffw, as soon as you pedalkick and the freewheel engages, your off. so the engagement you get is exactly what the freewheel provides. With a freehub, when you pedalkick, the movement goes through the front cog, down your chain, to your rear cog, then the hub engages. So the movement from your feet is changed from the gear ratio you're running. Does that help? Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) i totally understand the scheme.and i know about the technical things behind it.mathematic its right,18/12 is1.38 ratio,means one turn of the crank turns the cog 1.38 times. but i counted physically and the clicks per crank turn i hear match the ep of my hope,but should be 1.38 more ep,if youre right. Edited September 23, 2012 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted September 23, 2012 Report Share Posted September 23, 2012 Was that for one rotation of the hub or of the cranks though? Quote Link to comment Share on other sites More sharing options...
Martin Reynolds Posted September 23, 2012 Report Share Posted September 23, 2012 i totally understand the scheme.and i know about the technical things behind it.mathematic its right,18/12 is1.38 ratio,means one turn of the crank turns the cog 1.38 times. but i counted physically and the clicks i hear match the ep of my hope 18/12 is 1.5 ratio...... Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) argh,had a gear calculator and took the wrong ciphers.sorry deleted my fault of post Was that for one rotation of the hub or of the cranks though? guess... yeah crank turn.would it make sence in another way? Edited September 23, 2012 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
Martin Reynolds Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) argh,had a gear calculator and took the wrong ciphers.sorry but that´d mean,you arent right too,that would be 60 ep mathematically 18/12 = 1.5 ratio hope pro 2 trials = 48 ep 48 * 1.5 = 72.. Edited September 23, 2012 by Martin Reynolds Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) shouldnt write here after a few beers. forget what i said but that doesnt explain how the clicks per crank turn match the ep... edit:i counted that before drinking,therefore i am sure. think i´m out till i´m sober,octoberfest here... Edited September 23, 2012 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
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