Onzaallen Posted May 12, 2006 Report Share Posted May 12, 2006 (edited) Hi guys and girls, I am a very confused about the way gearing on bike trials works and have been for some time now.I am not to sure what bikes you have to use a front freewheel on and which you have to use a rear freewheel on, and also why?I was thinking of getting a new zona zip or a zoo python but was unsure as to where i would need the freewheel to be......front or rear.Also can you run one of the new tensile freewheels with a rear profile hub?Does this all boil down to which bottom bracket you get and if their is enough room for a freewheel to fit on the end or is it the cranks or the hub you are riding with?If it would make life easier for you all then i could put a spec up of what i am planning and you could tell me if it is fine or would it just not work and why.I was just wondering because a lot of you guys on here if some one posts 'Which freewheel should i buy?'you all seem to have a way of telling if it should go on the front or rear and which sprocket should go with it.If you guys could help me out on this then it would be very much appreciated. Edited May 12, 2006 by Onzaallen Quote Link to comment Share on other sites More sharing options...
Mat Smith! Posted May 12, 2006 Report Share Posted May 12, 2006 You will need a fixed rear wheel, with a 12T cog, and a freewhell(acs, tensile, eno etc.)OrA rear Profile/Echo/King whatever, and a 18T front cog(Echo, plaz etc.)Aslong as the ratio is 18:12 or 18:13 depending on your cranks, it will be fine.You can run a rear freewheel, 16T or something and a 22T front fixed cog, but it's abit pointless.Mat Quote Link to comment Share on other sites More sharing options...
Onzaallen Posted May 12, 2006 Author Report Share Posted May 12, 2006 Hi and thanks for the speedy replay mat.So what is better, a rear profile or a fixed rear?Cheers Allen. Quote Link to comment Share on other sites More sharing options...
Mat Smith! Posted May 12, 2006 Report Share Posted May 12, 2006 Hi and thanks for the speedy replay mat.So what is better, a rear profile or a fixed rear?Cheers Allen.Depends which you think feels better really, if you get an ENO, some people would prefer it to a Profile etc.But I've got a king, it was far better than my ACS, and you can really feel the engagement difference to a Profile.Wait for some other replys, 'cause I don't really know much about freewheels.Mat Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted May 12, 2006 Report Share Posted May 12, 2006 Hi and thanks for the speedy replay mat.So what is better, a rear profile or a fixed rear?Cheers Allen. I say it's personal preference really. I have a rear profile, and I love it. But I've rode bikes with ENO's, and I can't actually feel much difference. In the long run, a front freewheel will be cheaper, especially with the Tensile one out now. The only downside to a front freewheel, is getting your trousers eaten buy it! I'd say go for a front Tensile freewheel though for if you're on a budget. Quote Link to comment Share on other sites More sharing options...
Mat Smith! Posted May 12, 2006 Report Share Posted May 12, 2006 My front cog has eaten my trousers hehe.Not as much though, I can feel such a difference from an ACS, I had to put alot more effort in, weird to explain.Good luck.Mat Quote Link to comment Share on other sites More sharing options...
Onzaallen Posted May 12, 2006 Author Report Share Posted May 12, 2006 Hi, So if i get the front tensile then should i get a 12 or 13 tooth sprocket on the back?Also would i need to get a bigger bottom bracket so i could fit the freewheel?Thanks allot Allen. Quote Link to comment Share on other sites More sharing options...
Mat Smith! Posted May 12, 2006 Report Share Posted May 12, 2006 Hi, So if i get the front tensile then should i get a 12 or 13 tooth sprocket on the back?Also would i need to get a bigger bottom bracket so i could fit the freewheel?Thanks allot Allen.What frame and BB and you running atm?If you have a freewheel on already then you will still be able to fit one.And the rear hub/wheel you buy (if fixed) will most likely come with a 12 or 13T cog, which is good.Mat Quote Link to comment Share on other sites More sharing options...
Onzaallen Posted May 12, 2006 Author Report Share Posted May 12, 2006 What frame and BB and you running atm?If you have a freewheel on already then you will still be able to fit one.And the rear hub/wheel you buy (if fixed) will most likely come with a 12 or 13T cog, which is good.MatI am ridding a 04 onza t-bird with the standard square tapered bottom bracket.I am planning in selling it as a whole bike though so i wouldn't like too rob bits off of it as i have a mate that wants to buy it in the summer holidays. Quote Link to comment Share on other sites More sharing options...
JT! Posted May 12, 2006 Report Share Posted May 12, 2006 The idea on a bike is to have one thing that 'freewheel's'.If you have a freewheel on the front (on the cranks) you don't need a freewheeling device on the back (rear hub) so you use a fixed cog.If you have a profile (rear hub), which has an in built freewheel into it, you do not need a freewheel on the cranks. You use a fixed cog on the cranks.You defiantly don't need a freewheel and a profile.There's 4 options really...1, 2 and 3. An 18T [ACS/Tensile/ENO] freewheel on the cranks and a 12t fixed cog on the rear hub.4. A profile hub on the rear (which has a 12T cog on it) and a fixed (screw on) 18T cog on the cranks.The profile hub option is probably the best, although some people think the eno freewheel option is better as they're easier to service.The ACS freewheel option isn't exactly a great setup, but is the cheapest, and if you look after the freewheel it will be ok.The tensile option is probably your best bet, although they have just come on sale, they seem to be good for what you pay, and I’ve been told they feel just like an eno. To go for this option you'll need some 'front freewheel cranks', which is what the freewheel will screw onto. You will also need a fixed hub on the back wheel, which is what the 12t cog will screw onto. Quote Link to comment Share on other sites More sharing options...
Onzaallen Posted May 12, 2006 Author Report Share Posted May 12, 2006 Hey, thanks a lot jt! that was a great help.I think i would go for the tensile mainly because the profile is £160 or something stupid like that and i am not that good a rider so i couldn't justify that kind of price, it is more than i was thinking of paying for a frame.Cheers Allen. Quote Link to comment Share on other sites More sharing options...
JT! Posted May 12, 2006 Report Share Posted May 12, 2006 Also the good thing about the tensile freewheel is that it disn't have any taps like the eno or the acs, so you won't have any problems with them rubbing on the bb. Quote Link to comment Share on other sites More sharing options...
Onzaallen Posted May 13, 2006 Author Report Share Posted May 13, 2006 Thanks for all the help guys, now i know what is what thanks again Allen. Quote Link to comment Share on other sites More sharing options...
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