34t cassette and a medium cage road RD??
#1
Senior Member
Thread Starter
Join Date: Dec 2011
Location: NE Ohio
Posts: 2,595
Bikes: 1992 Serotta Colorado II,Co-Motion Speedster, Giant Escape Hybrid, 1977 Schwinn Super Le Tour
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 455 Post(s)
Likes: 0
Liked 112 Times
in
85 Posts
34t cassette and a medium cage road RD??
Wondering if anyone has run a 34t with a Shimano 5701 road RD? I know it "says" 32t max but can I make it work??
TThanks!!
TThanks!!
#2
Senior Member
Join Date: Feb 2015
Location: Mission Viejo
Posts: 5,801
Bikes: 1986 Cannondale SR400 (Flat bar commuter), 1988 Cannondale Criterium XTR, 1992 Serotta T-Max, 1995 Trek 970
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1943 Post(s)
Liked 2,164 Times
in
1,323 Posts
I have not run that combination, but I have run 2 teeth over on multiple Shimano RD’s without any issues.
John
John
Likes For sch:
#4
LR÷P=HR
Join Date: Sep 2019
Location: SF Bay Area
Posts: 2,161
Bikes: 1981 Holdsworth Special, 1993 C-dale MT3000 & 1996 F700CAD3, 2018 Cervelo R3 & 2022 R5, JustGo Runt, Ridley Oval, Kickr Bike 8-)
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 862 Post(s)
Liked 1,195 Times
in
687 Posts
SS = Max Cog=30T Max Capacity=34T
GS (when used on a Front Triple)= Max Cog=30T Max Capacity=40T
GS (when used on a Front Double)= Max Cog=32T Max Capacity=40T
So assuming you're running the GS version on a Front Double, the published Cog limit is 32T
Where are you currently regarding the 40T capacity?
Are you also looking to push Max Capacity over the limit also?
Barry
#5
Senior Member
Thread Starter
Join Date: Dec 2011
Location: NE Ohio
Posts: 2,595
Bikes: 1992 Serotta Colorado II,Co-Motion Speedster, Giant Escape Hybrid, 1977 Schwinn Super Le Tour
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 455 Post(s)
Likes: 0
Liked 112 Times
in
85 Posts
I installed a 5701 with a 34t large on the cassette and it works great!
#6
Full Member
Join Date: Oct 2019
Location: Foothills of West Central Maine
Posts: 410
Bikes: 2007 Motobecane Fantom Cross Expert, 2020 Motobecane Omni Strada Pro Disc (700c gravel bike), 2021 Motobecane Elite Adventure with Bafang 500W rear hub drive
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 174 Post(s)
Likes: 0
Liked 143 Times
in
94 Posts
Most likely fine
I am two teeth over spec. (36 vs. 34) on a 9 speed Sora RD, and it is fine. Shifts beautifully. I think I could go even more over spec. If I wanted, as the B screw is not close to limit. YMMV.