I want a Rapid Rise derailleur
10-02-19, 01:04 PM
#26
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Your first point about multi-shifts is valid, but the above quote is incorrect. The same lever will work against the spring in both cases, its just the direction that the RD moves that changes. With a Top Normal RD, the spring pulls the RD toward the smallest cog. With a Low Normal the spring pulls the RD toward the largest cog.
10-02-19, 01:30 PM
#27
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10-02-19, 03:39 PM
#28
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I always believer that the cable pull to shift into a larger cog/ring was because it took more energy to lift that chain up. Relying on a spring to do so, especially when there would then be no "overshift" travel to the cage, requires a spot on index adjustment. This is what well biked said about single race adjustment expectations I think. I look at rapid rise as a "in a perfect world" type of thing. Too bad real life/bike riding isn't perfect very often. Andy
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AndrewRStewart
AndrewRStewart
10-02-19, 05:50 PM
#29
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Your first point about multi-shifts is valid, but the above quote is incorrect. The same lever will work against the spring in both cases, its just the direction that the RD moves that changes. With a Top Normal RD, the spring pulls the RD toward the smallest cog. With a Low Normal the spring pulls the RD toward the largest cog.
I always believer that the cable pull to shift into a larger cog/ring was because it took more energy to lift that chain up. Relying on a spring to do so, especially when there would then be no "overshift" travel to the cage, requires a spot on index adjustment. This is what well biked said about single race adjustment expectations I think. I look at rapid rise as a "in a perfect world" type of thing. Too bad real life/bike riding isn't perfect very often. Andy
10-04-19, 04:58 AM
#30
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There’s something you don’t hear everyday.
06-19-20, 08:06 AM
#31
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I like my rapid rise rear derailleur.
I've had my KTM MTB for over 20 years and the Nexave Megarange rapid rise rear derailleur always worked just fine. The gear shifter needed opening and cleaning once because it was sticky and wouldn't shift down any more. I haven't had to change the cable once in over 20 years.
06-19-20, 09:50 AM
#32
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I put Rapid Rise on a mountain bike for my wife 5/6 years ago. She has ridden road bikes with down tube shifters, but the triggers caused her shifting issues. Even though she does not ride anything technical, I want her the know that she was shifting the right direction.
I ended up putting one on my bike and liked the ability to dump the cassette like paintball (single finger of course) if I had to.
So now I’ve got a few flat bar bikes with them.
I’ve had no issues with them at all, even the bikes where I have gone down in water. I keep waiting for the doomsday, but it just hasn’t come.
I’ve used 3 RR derailleurs...
Deore 580 - wouldn’t recommend because of a weak B spring.
XT 760 - probably the best and has been bulletproof.
XTR 960 - not enough improvement over the 760.
I really don’t care about the opinion of the derailleurs. I buy and build what I want.
John
I ended up putting one on my bike and liked the ability to dump the cassette like paintball (single finger of course) if I had to.
So now I’ve got a few flat bar bikes with them.
I’ve had no issues with them at all, even the bikes where I have gone down in water. I keep waiting for the doomsday, but it just hasn’t come.
I’ve used 3 RR derailleurs...
Deore 580 - wouldn’t recommend because of a weak B spring.
XT 760 - probably the best and has been bulletproof.
XTR 960 - not enough improvement over the 760.
I really don’t care about the opinion of the derailleurs. I buy and build what I want.
John
06-20-20, 11:29 AM
#33
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dsaul said easier for new riders to figure out. this is exactly what Suntour thought with their
backwards front derailleurs of the early 70s but they were soon scapped. the standard arrangement
just makes more sense from a mechanical view. use the strength of the cable pull to make the
difficult shift (low) and let the spring ease it down to high and if the shifters move in opposite
directions so be it.
backwards front derailleurs of the early 70s but they were soon scapped. the standard arrangement
just makes more sense from a mechanical view. use the strength of the cable pull to make the
difficult shift (low) and let the spring ease it down to high and if the shifters move in opposite
directions so be it.
06-21-20, 07:11 AM
#34
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I have a few of them that I will be selling once I can finally travel post Covid-19.
