Thin washers in 7800 bar end shifters
10-24-14, 10:21 PM
#1
Senior Member
Thread Starter
Join Date: Aug 2008
Location: Tucson, Arizona
Posts: 704
Bikes: '02 Lemond Buenos Aires, '98 Fuji Touring w/ Shimano Nexus premium, '06 Jamis Nova 853 cross frame set up as commuter, '03 Fuji Roubaix Pro 853 back up training bike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Thin washers in 7800 bar end shifters
My right shifter had one or two paper-thin brass or copper washers. I only have one and it's torn. How essential are these to the function of the unit? No Shimano tech docs I found went into enough detail to even show these.
10-24-14, 10:34 PM
#2
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 38,717
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: 140 Post(s)
Tagged: 1 Thread(s)
Quoted: 5788 Post(s)
Liked 2,580 Times
in
1,430 Posts
I can't find these pictured either, but often this type of thin shim washer isn't directly related to the function, but is there to zero out axial play or prevent binding when shaft assemblies are tightened to a dead stop or shoulder. Using these as needed is easier than trying to hold critical tolerance on these parts. In some cases, like better quality freewheels from BITD they're removed as wear increases play.
Since I can't find them in the photos I don't know where they go, but if the above makes sense then feel free to try your luck without one of them. If the lever doesn't bind when tight, you're probably good to go.
Since I can't find them in the photos I don't know where they go, but if the above makes sense then feel free to try your luck without one of them. If the lever doesn't bind when tight, you're probably good to go.
__________________
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.
10-24-14, 11:21 PM
#3
Senior Member
Thread Starter
Join Date: Aug 2008
Location: Tucson, Arizona
Posts: 704
Bikes: '02 Lemond Buenos Aires, '98 Fuji Touring w/ Shimano Nexus premium, '06 Jamis Nova 853 cross frame set up as commuter, '03 Fuji Roubaix Pro 853 back up training bike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I can't find these pictured either, but often this type of thin shim washer isn't directly related to the function, but is there to zero out axial play or prevent binding when shaft assemblies are tightened to a dead stop or shoulder. Using these as needed is easier than trying to hold critical tolerance on these parts. In some cases, like better quality freewheels from BITD they're removed as wear increases play.
Since I can't find them in the photos I don't know where they go, but if the above makes sense then feel free to try your luck without one of them. If the lever doesn't bind when tight, you're probably good to go.
Since I can't find them in the photos I don't know where they go, but if the above makes sense then feel free to try your luck without one of them. If the lever doesn't bind when tight, you're probably good to go.
Thread
Thread Starter
Forum
Replies
Last Post
southpawboston
Bicycle Mechanics
4
05-07-11 09:53 PM
