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- Xref: sparky rec.bicycles.misc:1789 rec.bicycles.tech:2864
- Newsgroups: rec.bicycles.misc,rec.bicycles.tech,aus.bicycles
- Path: sparky!uunet!psinntp!ptsys1!rkd
- From: rkd@pt.com (Ray Downes)
- Subject: Re: Automatic transmissions for bikes
- Message-ID: <1992Dec30.131345.3808@pt.com>
- Organization: Performance Technologies, Incorporated
- References: <1992Dec29.182213.15085@pt.com> <tommy.725663704@hoodlum> <1992Dec30.070634.15469@beaver.cs.washington.edu>
- Date: Wed, 30 Dec 1992 13:13:45 GMT
- Lines: 25
-
- In article <1992Dec30.070634.15469@beaver.cs.washington.edu> pardo@cs.washington.edu (David Keppel) writes:
- >>rkd@pt.com (Ray Downes) writes:
- >>>[Many casual riders rarely shift well, using just 3-4 gears.]
- >
- >In article <tommy.725663704@hoodlum> tommy@boole.att.com writes:
- >>[Solvable! Linkage on a dept. store bike shifted front & rear.]
- >
- >If we're only worried about the casual riders, it's even easier than
- >that, but generally doesn't work for *marketing* reasons rather than
- >technical reasons.
- >
- >Use just a rear derailleur.
- >
- >11-13-16-19-23-28-34 gives more than a 3:1 range (30" to 100") with
- >modest steps between gears, reshuffle cogs to suit your favorite gaps.
-
- Until recently this is the way I had my road bike set up, 12-28 7 speed
- freehub to a single 44 chainring (on an ancient NR crank), hung on a
- long chainstay Trek. Used it for 11 years ... Why did I switch to a
- triple a week ago? I found (after buying a MTB) that I missed the fine
- increments AND wanted more range.
- --
- Ray Downes, Performance Technologies Incorporated rkd@pt.com
- 315 Science Parkway, Rochester, New York 14620
- Voice - (716) 256-0200, FAX (716) 256-0791
-