Is there any downside to mixing chainrings with a friction shift 7 speed?
04-26-11, 10:02 AM
#1
Full Member
Thread Starter
Join Date: Jul 2010
Location: San Antonio, Texas
Posts: 467
Bikes: 84 Coppi - 94 Hujsak - 82 Colnago Superissimo - 78 Ciöcc - 70's Galmozzi - 73 Lambert - 78 Motobecane Grand Record - 87 Peugeot Triathlon - 66 Peugeot H-40 - 78 Peugeot U08 - 85 Raleigh C-40 - 82 miyata 310 - 82 Univega - 85 Sterling SIS Mixte
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 39 Post(s)
Liked 42 Times
in
14 Posts
Is there any downside to mixing chainrings with a friction shift 7 speed?
I want to try a larger inner chainring, a 42T or 44T. The outer is a pre SIS Shimano 600 52T 3/32.
For the inner is there any real downside with using a Shimano SuperGlide 3/32. or a Sugino Standard, no ramps or pins 8-speed, Chain Compatibility:9-Speed, 3/32, with my existing large ring? (they are both pretty affordable)
Or would there be any advantage to get both rings Shimano SuperGlide?
It's friction shift with a Suntour Winner 13-23, 7 speed freewheel. Thanks for any input.
For the inner is there any real downside with using a Shimano SuperGlide 3/32. or a Sugino Standard, no ramps or pins 8-speed, Chain Compatibility:9-Speed, 3/32, with my existing large ring? (they are both pretty affordable)
Or would there be any advantage to get both rings Shimano SuperGlide?
It's friction shift with a Suntour Winner 13-23, 7 speed freewheel. Thanks for any input.
04-26-11, 10:11 AM
#2
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 38,995
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 141 Post(s)
Tagged: 1 Thread(s)
Quoted: 5930 Post(s)
Liked 2,823 Times
in
1,577 Posts
If both rings are a matched set of Super(or hyper or whatever) Glide rings, you'll get crisper shifting as the chain will be phased to smoothly engage as it passes through the shift gate (cut down tooth).
If they're not a matched set, don't pay extra for just one. Either way for friction shifting it won't make much difference because you're using touch to shift and trim so the gates aren't as important. We shifted fine without gates for decades before index shifting made them necessary.
If they're not a matched set, don't pay extra for just one. Either way for friction shifting it won't make much difference because you're using touch to shift and trim so the gates aren't as important. We shifted fine without gates for decades before index shifting made them necessary.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
