Jake. Posted April 29, 2013 Report Share Posted April 29, 2013 (edited) My Dad showed me this, still trying to figure out how it works. Mind = f**ked. Link - here Edited April 29, 2013 by JMCD Quote Link to comment Share on other sites More sharing options...
ZeroMatt Posted April 29, 2013 Report Share Posted April 29, 2013 Link doesn't work btw. Quite simple really, those setups work like that as they are essentially 2 separate freewheels just with one chain. Pedaling one way engages one of the freewheels then the other way the second freewheel. So having differing sizes means you can have 2 gear ratios. Quote Link to comment Share on other sites More sharing options...
MadManMike Posted April 29, 2013 Report Share Posted April 29, 2013 (edited) Just add: 's_Red_Bike On to the link once you've clicked it. Edited April 29, 2013 by MadManMike Quote Link to comment Share on other sites More sharing options...
Jake. Posted April 29, 2013 Author Report Share Posted April 29, 2013 Link doesn't work btw. Quite simple really, those setups work like that as they are essentially 2 separate freewheels just with one chain. Pedaling one way engages one of the freewheels then the other way the second freewheel. So having differing sizes means you can have 2 gear ratios. Just add: 's_Red_Bike On to the link once you've clicked it. Sorted it out Quote Link to comment Share on other sites More sharing options...
dan rider g Posted April 29, 2013 Report Share Posted April 29, 2013 wow that's amazing Quote Link to comment Share on other sites More sharing options...
dezmtber Posted April 30, 2013 Report Share Posted April 30, 2013 You pedal backwards to go faster no wonder I haven't seen this before sounds really bad Quote Link to comment Share on other sites More sharing options...
JD™ Posted April 30, 2013 Report Share Posted April 30, 2013 You pedal backwards to go faster no wonder I haven't seen this before sounds really bad Nope, backwards is the slower gear. I think it's cool that people do this for the sake of it, even if its completely bonkers! Quote Link to comment Share on other sites More sharing options...
Jake. Posted April 30, 2013 Author Report Share Posted April 30, 2013 Yeah it's mad haha, people say they use the lower gear to start off then the higher gear when it to speed. My dad is thinking of doing it, but he loves toying with bikes though. Quote Link to comment Share on other sites More sharing options...
Ash-Kennard Posted April 30, 2013 Report Share Posted April 30, 2013 pure awesome Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 6, 2013 Report Share Posted May 6, 2013 Quote Link to comment Share on other sites More sharing options...
Jake. Posted May 6, 2013 Author Report Share Posted May 6, 2013 Left hand drive?? Quote Link to comment Share on other sites More sharing options...
Joshm1991 Posted May 6, 2013 Report Share Posted May 6, 2013 Wouldn't you have to pedal backwards though? the EPs in the freewheel would still be the wrong way? I don't understand this one little bit! Haha I'm sat with an old freewheel trying to work it out! Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 8, 2013 Report Share Posted May 8, 2013 someone built this for a mates marriage afaik,it goes forwards when you pedal backwards: Quote Link to comment Share on other sites More sharing options...
JD™ Posted May 9, 2013 Report Share Posted May 9, 2013 Looks more like it's a bodge to make a right hand drive freewheel work with left hand drive. Trace it round, if you move the crank 'forwards' then the top half of the chain at the freewheel is the bottom half of the chain at the wheel and as such pulls the wheel the right way. Quote Link to comment Share on other sites More sharing options...
Jake. Posted May 9, 2013 Author Report Share Posted May 9, 2013 Wouldn't you have to pedal backwards though? the EPs in the freewheel would still be the wrong way? I don't understand this one little bit! Haha I'm sat with an old freewheel trying to work it out! One freewheel goes on which can freewheel clockwise and the other one freewheels anticlockwise, the chain goes over the normal freewheel then once it's around that one it gets turned round and looped around a freewheel that's the other way round, then loops round the cranks. When you pedal forward the pawls in the freewheel that rotates anticlockwise (the first one it loops round) engage and allow you to pedal forward in say 44t by 16t ratio. The clockwise freewheel will be freewheeling when you're pedalling forward because the chain just pushes through it, imagine pedalling backwards on a normal single speed, the chain will just push through the freewheel if that makes sense? Hope that clears it up a bit, just explaining that helped me understand it too lol. Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 9, 2013 Report Share Posted May 9, 2013 (edited) what? even if the ffw would be mounted the other way round it wouldnt go in the direction youre pedalling? edit:and it would kill the pulley rolls if it was that way haha edit:or did you mean "forwards" as in"like the crank´d be supposed to"? Edited May 9, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
JD™ Posted May 9, 2013 Report Share Posted May 9, 2013 Yep, you're totally right. I didn't even look at it this morning because I thought I got it right yesterday but clearly I was thinking with my arsehole instead of my brain. 1 Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 9, 2013 Report Share Posted May 9, 2013 i know that for myself,haha,the "morningly brainf*ck phase" we all have to get coffee intravenous against every day. sorry if i sounded bitchy for that,reading my post again... Quote Link to comment Share on other sites More sharing options...
Tomm Posted May 9, 2013 Report Share Posted May 9, 2013 One freewheel goes on which can freewheel clockwise and the other one freewheels anticlockwise I don't think that's right. Both rear sprockets freewheel normally, in the same direction (clockwise = drive, anticlockwise = freewheel). The bike can freewheel rolling forwards. Pedalling normally (clockwise) pulls the chain clockwise across the smaller sprocket which engages and drives the wheel. The chain then goes around the pulley and back round the larger sprocket in reverse direction, which spins (anticlockwise) freely. Pedalling backwards engages the larger sprocket clockwise so still moves the bike forwards. The chain returns via the smaller sprocket freewheeling as it spins anticlockwise. I love it. Really want a go! That trials bike is weird though. Pedalling backwards when you're trying to E.g. sidehop / gap etc is just plain wrong! Quote Link to comment Share on other sites More sharing options...
Jake. Posted May 9, 2013 Author Report Share Posted May 9, 2013 Yeah that's what I mean basically, one freewheel goes on the other way round. Only way I could describe it to make sense was to say it went on anticlockwise, does that make sense? Lol. Quote Link to comment Share on other sites More sharing options...
Tomm Posted May 9, 2013 Report Share Posted May 9, 2013 No, if you take the chain off and just had the back wheel, both sprockets would spin the same way. Quote Link to comment Share on other sites More sharing options...
Jake. Posted May 9, 2013 Author Report Share Posted May 9, 2013 Oh yeah, f**king hell that's so cool. Mind f**kery stuff. Quote Link to comment Share on other sites More sharing options...
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