Houseface Posted July 20, 2006 Report Share Posted July 20, 2006 hey,today i was thinking, we have cassette hubs and all, but many of us run FFW.so, i was wondering is a cassette bb would work/ever be made/ even be a good idea.i think it would be a good idea.your veiws?steve. Quote Link to comment Share on other sites More sharing options...
Brian Bleech Posted July 20, 2006 Report Share Posted July 20, 2006 hey,today i was thinking, we have cassette hubs and all, but many of us run FFW.so, i was wondering is a cassette bb would work/ever be made/ even be a good idea.i think it would be a good idea.your veiws?steve.Sorry its not a goot idea, imo. The bb axle would be too wide for a start! You would need some sort of mech on the front to change gear, which would probably be exposed to getting twatted on rocks/walls.It would really solve any problem and just create new ones. Quote Link to comment Share on other sites More sharing options...
Al_Fel Posted July 20, 2006 Report Share Posted July 20, 2006 (edited) you'd need a front and rear mech to keep tension on the chain.who changes gear anyway?(I got the wrong end of the stick there didn't I boys) Edited July 20, 2006 by Anal_Teflon Quote Link to comment Share on other sites More sharing options...
Houseface Posted July 20, 2006 Author Report Share Posted July 20, 2006 what i meant was that you only have one cog on the front like you would on front freewhell but the cog is on the bb.steve. Quote Link to comment Share on other sites More sharing options...
poopipe Posted July 20, 2006 Report Share Posted July 20, 2006 what i meant was that you only have one cog on the front like you would on front freewhell but the cog is on the bb.steve.It's an interesting enough idea but I think the costs of making one strong enough for trials/bmx etc. would be prohibitive. The euro BB shell is already too small for decent sized bearings & axles so by the time you'd stuffed a ratchet and pawls in you'd be buggered unless you went for proper space age materials - which cost a fortune. It might let you get away with a much wider ratchet & pawls - which presumably would help increase the life of the engagement mechanism. An even cunninger idea might be to have several offset ratchets in a row inside the shell to give you shed loads of engagements without sacrificing tooth depth. KHE might have made a hub like that recently but not certain Quote Link to comment Share on other sites More sharing options...
Nuke Bowel Posted July 20, 2006 Report Share Posted July 20, 2006 what i meant was that you only have one cog on the front like you would on front freewhell but the cog is on the bb.steve. You will soon find out if its a good idea.koxx will decide to use it Quote Link to comment Share on other sites More sharing options...
Houseface Posted July 20, 2006 Author Report Share Posted July 20, 2006 You will soon find out if its a good idea.koxx will decide to use it if they or any one do make one i would seriously think about buying one depending on how strong it is.steve. Quote Link to comment Share on other sites More sharing options...
Brian Bleech Posted July 20, 2006 Report Share Posted July 20, 2006 you could make a bashguard/cog that fitted straight to an isis axle (a bit like the DMR crisis crank) and then get some ridiculous like 11/9 gearing Quote Link to comment Share on other sites More sharing options...
CurtisRider Posted July 20, 2006 Report Share Posted July 20, 2006 would you even need a bash then mike? you would hit the bb shell before you hit the chainring and 11:9-chainsnapgalore Quote Link to comment Share on other sites More sharing options...
Brian Bleech Posted July 20, 2006 Report Share Posted July 20, 2006 would you even need a bash then mike? you would hit the bb shell before you hit the chainring and 11:9-chainsnapgalore nah i reckon a 32T bash would be perfect .... and extra chain snaps just add to the fun.. Quote Link to comment Share on other sites More sharing options...
CurtisRider Posted July 20, 2006 Report Share Posted July 20, 2006 nah i reckon a 32T bash would be perfect .... yeah what was i thinking Quote Link to comment Share on other sites More sharing options...
mods Posted July 20, 2006 Report Share Posted July 20, 2006 surely you would need a massive bb, and not many of them would be produced making them expensive.., also what the point.. what gain would you have from doin this?.. i'm sure when the first cassette's were made and the discussion on front or back would of been had. They are prob on the back for gd reason. imo this is a terrible idea Quote Link to comment Share on other sites More sharing options...
mat hudson Posted July 20, 2006 Report Share Posted July 20, 2006 howabout a crank that instead of screw on it has a cassette spline. interchangable + easy. Quote Link to comment Share on other sites More sharing options...
PaRtZ Posted July 20, 2006 Report Share Posted July 20, 2006 Hmmm I have a feeling it may just be better to get a freewheel or run rear cassette Quote Link to comment Share on other sites More sharing options...
Janson Posted July 20, 2006 Report Share Posted July 20, 2006 howabout a crank that instead of screw on it has a cassette spline. interchangable + easy.was thinking of it a while ago, it would work perfectly fine. it'd be nice to run tiny front gears... Quote Link to comment Share on other sites More sharing options...
Jez Posted July 21, 2006 Report Share Posted July 21, 2006 Internal hub gears...on the front, anyone?Or am I getting the wrong end of the stick here?Personally I can't really see the point. Someone might do it, but they'd be doing it for the sake of it rather than for some particular advantage (which I can't see).As MBUK once said about triple-link rear sus: Why? What's the point? How many Meccano sets will it take? Quote Link to comment Share on other sites More sharing options...
JT! Posted July 23, 2006 Report Share Posted July 23, 2006 howabout a crank that instead of screw on it has a cassette spline. interchangable + easy.Hasn't dengypoos done that. Last i saw of the 18T cogs they were splined. Quote Link to comment Share on other sites More sharing options...
Brian Bleech Posted July 23, 2006 Report Share Posted July 23, 2006 Hasn't dengypoos done that. Last i saw of the 18T cogs they were splined.i think thats just the rear hubs Quote Link to comment Share on other sites More sharing options...
ogre Posted July 23, 2006 Report Share Posted July 23, 2006 stermy archer gearing 4tehWin!!111! i can't see why king/koxx hasn't tried that yet, would be excellent for trials, no mech to get killed! mite be a bit shit for engagements though? Quote Link to comment Share on other sites More sharing options...
CurtisRider Posted July 23, 2006 Report Share Posted July 23, 2006 stermy archer gearing 4tehWin!!111! i can't see why king/koxx hasn't tried that yet, would be excellent for trials, no mech to get killed! mite be a bit shit for engagements though?as standard i think stumeys have 6-8 ep, then it increases when you change up gear i think Quote Link to comment Share on other sites More sharing options...
ogre Posted July 23, 2006 Report Share Posted July 23, 2006 True, but kings work the same as stermys (dont they?) sop surely you could get a king that could change gear without a mech etc? Quote Link to comment Share on other sites More sharing options...
Al_Fel Posted July 23, 2006 Report Share Posted July 23, 2006 I've just been looking at an exercise bike and its got instant engagments because the way it works is its got a tube with a spring going around it so when you pedal forward the spring tightens onto the tube and grips it then when you stop pedaling it releases it. This way also works as a freecoaster kind of thing aswell. its very simple but very effective.Got no idea how it would work on a trials bike but there's only one way to find out.The reason I mentioned it is because you might be able to get a spring round a bb axle and onto the cranks which would give you an instant engaging front freewheel kind of thing.Not sure if i've explained it well enough. Quote Link to comment Share on other sites More sharing options...
CurtisRider Posted July 23, 2006 Report Share Posted July 23, 2006 lalalayeah, but i think the stress that cause on the hub body causes them to basically explode and they were really spongey, saying that they werent designed with trilas in mind, so maybe a reinforced shell could be a possibility and no, kings dont work like sturmeys Quote Link to comment Share on other sites More sharing options...
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