The bent hanger suggestion is a very good one and responds to the fact that
the rub is only on the lower chain run. I'll be interested to hear what
Mike finds, and I wonder how many of my own der hangers have been slightly
bent but hidden by friction shifting.
On Sun, Jul 7, 2024 at 12:09 PM Mike
Yes, Will, it’s one of my favorite tools. I have a feeling there are quite a few Riv owners with friction shifters riding around with hangers that are misaligned. But, I suppose that can be seen as an added benefit to friction shifting.Sent from my iPhoneOn Jul 7, 2024, at 10:48 AM, Will Boericke
It wasn't until I got a hanger alignment tool that I realized how many
bikes have misaligned hangers. I use it all the time! And newer
drivetrains are definitely much more sensitive to misalignment. All to
say, this sounds like an alignment issue to me as well
Will
On Sunday, July 7, 2024
What Mike Rossi said! That would explain the peculiar situation of the
chain rub at the bottom only.
My money is on Mike.
On Sunday, July 7, 2024 at 8:35:39 AM UTC-4 Mike Rossi wrote:
> Also, you mentioned chain rubbing at the bottom and not the top. When I
> received my frameset I had t
What Mike Rossi said! That would explain the peculiar situation of the
chain rub the bottom only.
My money is on Mike.
On Sunday, July 7, 2024 at 8:35:39 AM UTC-4 Mike Rossi wrote:
> Also, you mentioned chain rubbing at the bottom and not the top. When I
> received my frameset I had to a
Also, you mentioned chain rubbing at the bottom and not the top. When I received my frameset I had to adjust the derailleur hanger as it was misaligned. That may be an issue as well.Sent from my iPhoneOn Jul 7, 2024, at 4:49 AM, Mike Rossi wrote:For the record, I’m using a 122.5 mm spindle on my
For the record, I’m using a 122.5 mm spindle on my Susie with a 1 mm spacer added to the drive side. It gives plenty of clearance with 2.3’s. I am using a 2 x 7 setup, so my biggest sprocket is a little further away from center, but I think I could still clear the tire even if it were closer. If I
First, check chainline.
Doesn't the Gus have typical long Rivendell stays? This should structurally
minimize the chance of such chain rub, so perhaps your spindle is too short
for proper chainline. Does Riv spec a spindle length for that frame and a
1X11?
OTOH, if the chainline is correct but you
David, would a wider bottom bracket axle solve the issue? How long is the
current one?
On Saturday, July 6, 2024 at 5:40:45 PM UTC-4 David Ross wrote:
> I built up a Gus recently. I used a 1x11 Deore derailleur and the chain
> rubs the tire in the largest cog. The chain above the chain stay
