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Fixed Gear - Chain Questions
Now that I have my fixed gear -- a Bianchi Pista (for all of 20 hours), a
couple of questions. 1. How do you get the rear wheel off? Do they all have master links? 2. I hear people talking about have two different gears - on on each side of the wheel. Sure enough, my bike does appear to have both sides threaded for a fixed gear 2a. What is needed to put a new gear on the other side - a cog and a lock ring? 2b. What about chain length? I suppose that the vertical drop outs are long enough for some different in gear diameter, but how much room for different gears do you practically have? I've got a 16 cog on the gear right now and I'd like to put a lower gear (ie, more teeth) on the other side. Thanks for all the help. -Kalukis |
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#2
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Fixed Gear - Chain Questions
Kalukis wrote:
Now that I have my fixed gear -- a Bianchi Pista (for all of 20 hours), a couple of questions. 1. How do you get the rear wheel off? Do they all have master links? You don't break the chain for wheel removal, just loosen the axle nuts, slide the wheel forward, and derail the chain from the chainring. This will give you enough slack to slide the axle back and out of the fork ends. Unfortunately, most fixed-specific frames have these old-fashioned rear-opening fork ends instead of the more modern "drop out" type where the opening is forward. The rear opening design makes wheel changes slower and messier, for no functional advantage--it's just an atavistic styling exercise. 2. I hear people talking about have two different gears - on on each side of the wheel. Sure enough, my bike does appear to have both sides threaded for a fixed gear 2a. What is needed to put a new gear on the other side - a cog and a lock ring? You can thread a fixed sproket or a single speed freewheel onto the opposite side of the hub, but that side doesn't have the smaller left hand threads for a lock ring. Since there's no provision for a lock ring on the other side, it shouldn't be relied upon for stopping--the sprocket might unscrew at the worst possible time. See: http://sheldonbrown.com/fixed-conver...l#freewheelhub for details and techniques for dealing with this. Unfortunately the Pista isn't set up for a rear brake, so I really can't recommend using the opposite side of the hub. If you do, use the side with the lockring for the lower gear, because that's the one that's more liable to unscrew. 2b. What about chain length? I suppose that the vertical drop outs are long enough for some different in gear diameter, but how much room for different gears do you practically have? I've got a 16 cog on the gear right now and I'd like to put a lower gear (ie, more teeth) on the other side. The Bianchi Pista doesn't have vertical drop outs, it has rear-opening horizontal fork ends. See: http://sheldonbrown.com/gloss_d.html#dropout There's plenty of adjustment room. For each tooth added or subtracted to either sprocket, the axle only moves 1/8" (3 mm) I've gots of lots of other fixed-gear info at: http://sheldonbrown.com/fixed Sheldon "Fixed Gear" Brown +---------------------------------------------------+ | There was a man with a tongue of wood | | Who essayed to sing. | | And in truth it was lamentable. | | But there was one who heard | | The clip-clapper of this tongue of wood | | And knew what the man wished to sing, | | And with that the singer was content. | | --Stephen Crane | +---------------------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone 617-244-9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find parts shipped Worldwide http://captainbike.com http://sheldonbrown.com |
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Fixed Gear - Chain Questions
On Fri, 12 Mar 2004 14:09:44 +0000, Kalukis wrote:
Now that I have my fixed gear -- a Bianchi Pista (for all of 20 hours), a couple of questions. 1. How do you get the rear wheel off? Do they all have master links? Yes, they do, but you don't need to take it off. Loosen the nuts, then the wheel will probably move in enough to encuorage the chain off of the cog, then you pull the wheel off, moving the chain again around the axle. 2. I hear people talking about have two different gears - on on each side of the wheel. Sure enough, my bike does appear to have both sides threaded for a fixed gear That's what I*have. 2a. What is needed to put a new gear on the other side - a cog and a lock ring? Yup. Sometimes the other side is threaded for freewheels, no locknut. 2b. What about chain length? I suppose that the vertical drop outs are long enough for some different in gear diameter, but how much room for different gears do you practically have? Lots. I've got a 16 cog on the gear right now and I'd like to put a lower gear (ie, more teeth) on the other side. You may need more links, depending on how tight the chain is right now. I have used a second master link to allow for easy change of chain length. -- David L. Johnson __o | The trouble with the rat race is that even if you win you're _`\(,_ | still a rat. --Lilly Tomlin (_)/ (_) | |
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Fixed Gear - Chain Questions
kalutis- Bianchi Pista (for all of 20 hours), a
couple of questions. 1. How do you get the rear wheel off? Do they all have master links? Loosen the locknuts, push wheel forward, take chain off the ring, move wheel aft, take chain off cog, remove wheel. many chains have snaplinks and track chains have masterlinks but you don't need to split the chain to get the wheel out. 2. I hear people talking about have two different gears - on on each side of the wheel. Sure enough, my bike does appear to have both sides threaded for a fixed gear 2a. What is needed to put a new gear on the other side - a cog and a lock ring? 2b. What about chain length? I suppose that the vertical drop outs are long enough for some different in gear diameter, but how much room for different gears do you practically have? I've got a 16 cog on the gear right now and I'd like to put a lower gear (ie, more teeth) on the other side. yes to what you said. the horizontal dropouts will take care of chainlength. Thanks for all the help. -Kalukis BRBR Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
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