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Freewheels.please help!

Old 03-02-06, 02:13 PM
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street basher
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Freewheels.please help!

just wondering if it is possible to get a freewheel that rides forward as normal but when riding fakie/bakwards it freewheels (cranks don't turn bakwards)? personally i wouldn't kno how something like that would work but earlier today i was watching some bmx video's and some were riding fakie and freewheeling at the same time? anyone kno how to achieve this? or was i just seeing things?
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Old 03-02-06, 02:40 PM
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Well, in a 10 speed bike, Shimano manufactured something like this in the 1970's to maybe early 1980's. It was called the Shimano Front Freewheeling System. The rear 5 speed freewheel was screwed onto the rear hub and did not freewheel. It move backward or forwards in the same direction as the rear wheel. Now the crankset, sometimes 1 piece and sometimes 3 piece cottered, had the freewheel built into its bottom bracket. You would push down on the pedals, and if you stopped, the 2 front sprockets continued freewheeling forward, while also pulling the rear wheel along with it. It was a great bulletproof system for beginner cyclists. Negatives-added a lot of weight to the bike, needed a special rear freewheel (that did not freewheel) special crank arms, sprockets , bottom bracket, and special (again) Shimano tool to remove the bottom bracket freehub set up. Anyway, don't know if anyone makes a single speed version of this. Perhaps a BMX knowledgabel person could answer.
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Old 03-02-06, 02:52 PM
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cheers bud, interesting design but not quite wot i was thinking! thanks anyway.

anyone else know of anything?
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Old 03-02-06, 04:21 PM
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The only systems I have ever seen are:
1) standard ratcheting freewheel, which permits coasting and/or backpedaling;
2) "track bike" fixed gear, in which the cranks always turn when the rear wheel does, and in the same direction.
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Old 03-02-06, 08:32 PM
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Originally Posted by razzin' idiot
just wondering if it is possible to get a freewheel that rides forward as normal but when riding fakie/bakwards it freewheels (cranks don't turn bakwards)? personally i wouldn't kno how something like that would work but earlier today i was watching some bmx video's and some were riding fakie and freewheeling at the same time? anyone kno how to achieve this? or was i just seeing things?
You aren't seeing things. The riders in the BMX videos have freecoaster hubs.

https://www.albes.com/index.asp?PageA...ROD&ProdID=125

They're basicly coaster brake hubs with a few mods.
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Old 03-03-06, 04:17 AM
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Odyssey are working on a new coaster at the moment.
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Old 03-03-06, 10:24 AM
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cheers mate just what i was looking for! any one know if some one makes a mounting bike version?
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Old 03-03-06, 10:47 AM
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Nope, they're all 110mm single speed. If you're some sort of urban MTBer, might I suggest you get a proper bike https://video.google.com/videoplay?do...26770575549750
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Old 03-03-06, 04:42 PM
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i have a 'proper' bike. a mountain bike! im 6'4" which makes a bmx feel tiny plus i prefer mtb handling over bmx
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