raptor-22 Posted July 23, 2015 Posted July 23, 2015 http://www.bikerumor.com/2015/07/23/shimano-files-patent-for-shiftable-narrow-wide-chainrings/
the nerd Posted July 24, 2015 Posted July 24, 2015 We never had a shifting issue with normal chain rings... I think they making a solution for a problem that never existed.
Donovan Le Cok Posted July 24, 2015 Posted July 24, 2015 We never had a shifting issue with normal chain rings... I think they making a solution for a problem that never existed. The issue is you couldn't shift with the narrow wide system seen on the 1 x setups, these are not normal chain rings.
the nerd Posted July 24, 2015 Posted July 24, 2015 The issue is you couldn't shift with the narrow wide system seen on the 1 x setups, these are not normal chain rings.That makes no sense.
shaper Posted July 24, 2015 Posted July 24, 2015 Agreed it makes no sense, the reason for a NW chainring was so that you could run a 1 x setup without the need of a FD or chain guide to stop dropping of the chain. If you have a 2x or 3x setup then you will have an FD so there is no need for a NW chainring
the nerd Posted July 24, 2015 Posted July 24, 2015 Agreed it makes no sense, the reason for a NW chainring was so that you could run a 1 x setup without the need of a FD or chain guide to stop dropping of the chain. If you have a 2x or 3x setup then you will have an FD so there is no need for a NW chainringExactly.
NotSoBigBen Posted July 24, 2015 Posted July 24, 2015 So it is only useful for people who may (no idea why) change between 1* and 2/3* systems from time to time on the same bike?
Nick Posted July 24, 2015 Posted July 24, 2015 Agreed it makes no sense, the reason for a NW chainring was so that you could run a 1 x setup without the need of a FD or chain guide to stop dropping of the chain. If you have a 2x or 3x setup then you will have an FD so there is no need for a NW chainring Bikes with front derailleurs still drop chains off the front. I guess they're looking to minimise this.
Dots Posted July 24, 2015 Posted July 24, 2015 So it is only useful for people who may (no idea why) change between 1* and 2/3* systems from time to time on the same bike?Lots of people have seen the error of their ways with 1X and moving back to 2X as 1X is master of non......unless you Kulhavy and you can run a 38 front ring! :-)
raptor-22 Posted July 24, 2015 Author Posted July 24, 2015 The application of Narrow-wide tooth profiles is to reduce the tendency to drop a chain and improve the shift quality. N-W tooth profiles also run quieter so theres a benefit to double and triple set ups if you can design such a tooth profile and chainring ramps to allow the chain to derail and shift to another chainring
the nerd Posted July 24, 2015 Posted July 24, 2015 Its still a solution to a problem that does not really exist...
Eldron Posted July 24, 2015 Posted July 24, 2015 Its still a solution to a problem that does not really exist...For years companies have been adding ramp pins, shaped teeth, angles teeth etc to assist shifting in 2x and 3x systems so why not add NW profiles to assist in chain retention? Its called progress you luddite :-)
Fisan Posted July 24, 2015 Posted July 24, 2015 Its still a solution to a problem that does not really exist... Like battery-powered shifters? I think this might save you for that one time where the chain drops and gets caught between the derailleur and small chainring. Where the only solution is the get off the bike and use your glean gloves and a few swearwords to manually put the greasy chain back on track.
the nerd Posted July 24, 2015 Posted July 24, 2015 For years companies have been adding ramp pins, shaped teeth, angles teeth etc to assist shifting in 2x and 3x systems so why not add NW profiles to assist in chain retention? Its called progress you luddite :-) I dont drop chains when not shifting anything on my 1x1 ha ha ha Gears confuse me...
Rocket-Boy Posted July 24, 2015 Posted July 24, 2015 Lots of people have seen the error of their ways with 1X and moving back to 2X as 1X is master of non......unless you Kulhavy and you can run a 38 front ring! :-)Which is why I still run 2x, dont see the point in saving a few grams only to lose 10 gears and have to try and make up for that with expensive range extenders.
Godzilla Posted July 24, 2015 Posted July 24, 2015 Which is why I still run 2x, dont see the point in saving a few grams only to lose 10 gears and have to try and make up for that with expensive range extenders.Have you tried 1 x RB ?
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