[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-26 Thread Lefebeaver
I’m running silver shifters, so it’s not an indexing issue. The upper part of the pulley cage actually makes metal to metal contact with the cassette as it passes between 3rd and 1st. When runnng in the middle ring up front and second in the back, it just touches the innermost gear on the

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-22 Thread Joe Bernard
Lefebeaver, I'll add to the chain questions with a shifter one: Are you using friction or index? Your problem on the second-biggest rear cog sounds like the pulley wheels are landing slightly off-center and towards the biggest cog, which would create that crunchy sound. Like you're going to

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-22 Thread dougP
Lefebeaver: Is your Atlantis one of the newer ones with longer chainstays? Mine is an '03 with IIRC 45 cm chainstays. I always install chains as they come, with no length adjustment. The longer stays where you have to add chain may require some care. dougP On Tuesday, June 22, 2021 at

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-22 Thread lconley
Sound like the chain is too long, and/or the B screw (body angle screw) needs to be turned in. Turning the B screw in (clockwise) increases the distance between the derailleur and the cogs. Laing Delray Beach FL On Tuesday, June 22, 2021 at 9:59:32 AM UTC-4 Lefebeaver wrote: > My Atlantis is

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-22 Thread Lefebeaver
My Atlantis is set up with an Altus, 24-34-44 up front, and 11-34 8-spd in back. I set up the chain length according to guidelines I got from Riv, but my Altus grinds on the second biggest gear in back when shifting to the innermost one - it scrapes on the gear on its way up and makes a

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-21 Thread dougP
Same here. My Atlantis has a 24/34/44 triple, and the Altus handles it fine. IIRC, the Altus is less than $30 at Rivendell (if they have them to sell). dougP On Monday, June 21, 2021 at 6:01:46 AM UTC-7 Bill Schairer wrote: > I ran an Altus on my Atlantis with a 12-36 9 speed cassette and a

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-21 Thread Bill Schairer
I ran an Altus on my Atlantis with a 12-36 9 speed cassette and a 42/34/19 triple for a week on the GDMBR and had no troubles other than being laughed at by another cyclist for my selection of a rear derailleur. What can I say - it worked. I decided to switch to the Altus for that ride

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-20 Thread Joe Bernard
What Doug said, it should be fine, Shimano rear derailers are usually good for pushing a couple teeth bigger than listed. I believe - this is math stuff I don't fully understand - some of the concern comes from if you're running a wide-range triple crank *and *a big cassette..at some point in

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-20 Thread dougP
I have an 11-36 9 speed cassette shifted by an Altus on my Atlantis. Works fine. I had a 34 big cog before & didn't change a thing when I replaced with the 36. dougP On Sunday, June 20, 2021 at 6:20:31 PM UTC-7 Michael Baquerizo wrote: > bought a 11-36t cassette for my new appa and

[RBW] Re: anyone push their altus (m310) to a 36t rear cog?

2021-06-20 Thread Jared Wilson
We have two bikes successfully set up with Altus rear with Microsoft 9 speed 11-42 cassettes using the Sunrace derailleur extenders available HERE on Rivendell's website. I think you'd be fine without one on a 36 but that's the next