How bad is a middle chainring without ramps and pins?
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How bad is a middle chainring without ramps and pins?
I ordered Vuelta SE Plus chainrings for the tandem (50/39/28) and although the 50 and the 39 both advertised ramps and pins and said they were for doubles and triples, the 39 has no ramps and pins. The seller verified with me that none of their 39's have ramps and pins and told me that they will still work, but I can return them if I want. Thoughts?
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They will work, but easier with bar cons then STI, which kind of wants the ramps and pins. STI doesn’t overshift like you can with bar cons.
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I am using brifters, so you're saying worst case I might have to (for lack of better words) shift up twice and then back down?
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I have Shimano 10-speed triples on four bikes, two FC-5703 and two FC-4603, that have 50/39/26 and 50/39/30 chainrings respectively. I can assure you the 39T middle chainrings all have pins and ramps shifting aids.
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You saying the OP is lying or just stating a random fact that is basically useless in this thread?
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So, anyone know where I can get a set of 50/39/28 (or close) chainrings for a triple? 130BCD.
Eh, people sometimes misunderstand or don't read questions fully before they answer. Pretty sure I've been guilty of it before, so I'll just gloss over it and move on.
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Last edited by urbanknight; 02-09-21 at 08:40 PM.
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I don't know what speed drivetrain you have, but here is a Tiagra set for 10speed:
https://www.universalcycles.com/shop...94&category=50
https://www.universalcycles.com/shop...94&category=50
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You can use the middle ring as is with your STI shifters. But you will need some technique in backing off slightly on your pedal stroke, or soft pedal, when you shift to the middle ring.
Having the ramps and pins make an easier and smoother shift, if you don’t ease off.
John
Having the ramps and pins make an easier and smoother shift, if you don’t ease off.
John
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I don't know what speed drivetrain you have, but here is a Tiagra set for 10speed:
https://www.universalcycles.com/shop...94&category=50
https://www.universalcycles.com/shop...94&category=50
You can use the middle ring as is with your STI shifters. But you will need some technique in backing off slightly on your pedal stroke, or soft pedal, when you shift to the middle ring.
Having the ramps and pins make an easier and smoother shift, if you don’t ease off.
John
Having the ramps and pins make an easier and smoother shift, if you don’t ease off.
John
You can use the middle ring as is with your STI shifters. But you will need some technique in backing off slightly on your pedal stroke, or soft pedal, when you shift to the middle ring.
Having the ramps and pins make an easier and smoother shift, if you don’t ease off.
John
Having the ramps and pins make an easier and smoother shift, if you don’t ease off.
John
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You could probably use 10 speed rings on a 9 speed system. I’m not sure of the best ring set to use, but that would be the direction I would go if I couldn’t find 9 speed rings.
John
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These ramped/pinned chain rings are designed as matched sets- the cut down teeth on one chain ring lines up with the lift pins on the next chain ring etc. So it's best to get the whole matched set. Triple chain rings are hard enough to dial in correctly, you don't need the added challenge of mix-and-match chain rings.
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These ramped/pinned chain rings are designed as matched sets- the cut down teeth on one chain ring lines up with the lift pins on the next chain ring etc. So it's best to get the whole matched set. Triple chain rings are hard enough to dial in correctly, you don't need the added challenge of mix-and-match chain rings.
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There's a technique when shifting small ring to middle on an STI to just throw the big lever inward a bit past the "click" That allows the brifter to pull more cable and to drive the chain up on the ring. You'd be doing this with barcons.
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#15
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I have a Ultegra double 9 spd with a replacement outer ring that has no pins/ramps. It does shift well enough for me but not as crisply as if the pins/ramps were present. I "grew up" without pins/ramps in the early SIS days and am accustomed to it. I would say it depends on your likes and tolerance. I also have a 9 spd triple on a very old Sakae crankset (no pins/ramps) but use friction shifters with it. In that case, friction is the bomb!
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Thanks everyone. I found a 39T chainring with no pins or ramps in my bin and am going to throw that on and see how it feels before committing to the rings I just bought. It's kind of annoying that the manufacturer's page literally has them under the category of "ramped and pinned chainrings" and has "Ring tooth sizes available for most road doubles and triples" in the description.
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#17
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We use TA rings many of our triple setups, tandem and half bike. The outer and middle rings come with pins but not ramps. They shift fine and last much longer than stock Shimano for us. The great thing is you can choose sizes that make sense for your purpose instead of being stuck with the limited less friendly Shimano offerings. Did I say they last a long time on the tandem?
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We use TA rings many of our triple setups, tandem and half bike. The outer and middle rings come with pins but not ramps. They shift fine and last much longer than stock Shimano for us. The great thing is you can choose sizes that make sense for your purpose instead of being stuck with the limited less friendly Shimano offerings. Did I say they last a long time on the tandem?
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Neither. The OP was told by the seller that the 39T chainring he received, which was stated to have the various shifting aids and came without them, would work. My point was the all of the triple crank middle chainrings I've seen do indeed have the shifting aids. and it's probably a worthwhile feature. Why do you have a problem with that?
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Neither. The OP was told by the seller that the 39T chainring he received, which was stated to have the various shifting aids and came without them, would work. My point was the all of the triple crank middle chainrings I've seen do indeed have the shifting aids. and it's probably a worthwhile feature.
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I ordered Vuelta SE Plus chainrings for the tandem (50/39/28) and although the 50 and the 39 both advertised ramps and pins and said they were for doubles and triples, the 39 has no ramps and pins. The seller verified with me that none of their 39's have ramps and pins and told me that they will still work, but I can return them if I want. Thoughts?
I'm not saying ramps and pins aren't an improvement for front shifting, but the unpinned versions work fine, imho.
Last edited by Camilo; 02-10-21 at 11:13 PM.
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Yeah, I encountered the same issue with Vuelta SE Plus chainrings. The 50T was ramped and pinned. But the 39T SE Plus wasn't noticeably different from the 38T plain SE model.
However I've had no problems with those chainrings on various road bikes with double chainrings, using old school Suntour Accushift downtube shifters, or MicroShift integrated shifters/brakes that are Shimano-compatible. After tweaking the setup it all shifts well. On the rare occasions the chain dropped on a shift a minor tweak restored the desired function.
For that matter, I've had no real problems with my hybrids with triple chainrings, all plain, no ramped/pinned big or middle rings. That's using three different types of Shimano STI setups. Currently my main hybrid uses Shimano bar-end shifters, and the left/front derailleur shifter is friction only. Before that I had RapidFire shifters, indexed only for front and rear.
The main advantage to ramped/pinned chainrings appears to be for the big ring.
My opinion subject to change at whim after switching one road bike from 7-speed to 8-speed Dura Ace STI, and another to 10-speed Dura Ace.
However I've had no problems with those chainrings on various road bikes with double chainrings, using old school Suntour Accushift downtube shifters, or MicroShift integrated shifters/brakes that are Shimano-compatible. After tweaking the setup it all shifts well. On the rare occasions the chain dropped on a shift a minor tweak restored the desired function.
For that matter, I've had no real problems with my hybrids with triple chainrings, all plain, no ramped/pinned big or middle rings. That's using three different types of Shimano STI setups. Currently my main hybrid uses Shimano bar-end shifters, and the left/front derailleur shifter is friction only. Before that I had RapidFire shifters, indexed only for front and rear.
The main advantage to ramped/pinned chainrings appears to be for the big ring.
My opinion subject to change at whim after switching one road bike from 7-speed to 8-speed Dura Ace STI, and another to 10-speed Dura Ace.
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Neither. The OP was told by the seller that the 39T chainring he received, which was stated to have the various shifting aids and came without them, would work. My point was the all of the triple crank middle chainrings I've seen do indeed have the shifting aids. and it's probably a worthwhile feature. Why do you have a problem with that?
For the OP urbanknight if they give you an option to return them I might do so. The ramps and pins are handy on an indexed system though certainly like others have said will work but not quite optimally. Peter Jehosaphat White sells TA chainrings that have the ramps and pins for a 130 triple crank middle chainring in both kinds of music, black and silver. (if you don't get the reference please watch the original Blues Brothers movie).
Hopefully the one in the bin works out well enough but for an indexed set up I want my pins and ramps and anything that will give me better shifting. Friction I am pretty chill with not having them because hey it's friction it generally just works without the fuss.
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I don't know how that's going to work on a tandem. You don't have quite the feel and finess for shifting.
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I returned them and found some 105 triple chainrings with ramps and pins. Just put them on and realized 10 speed is spaced closer than 9 speed, so the middle chainring is visually closer to the outer one and further from the inner one. Might have to shim the inner one, but tomorrow's test ride will tell. Don't care if it rubs when on the smallest cog because I should be in the big ring by then anyway.
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