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Other than it’s tooth count being 2 fewer, what in practical terms does that mean? I’ve barely scratched the surface of tooth count/gear ratio specifications. I’m basically ignorant as far as bicycles. But willing to learn.

Yes 110 mm bolt circle diameter. I repressed my PMD and used two 5mm allen wrenches and measured across with dial calipers. Being that the bolts are not straight across from each other and crank arm is installed there was a fudge factor to come up with approximately 4.5” and subtract the allen...

I do not know. I’ll have to measure. Brings up a thought I’ve had lately. I mentioned in another thread that I suffer from a self described condition I call PMD (precision measurement disorder). I’ve got a couple drawers and a cabinet full of calipers, micrometers, machinist rulers, etc. And...

No it is 36T. This is the chain ring on my purple 1993 M500 (Altus A10 26/36/46) . I thought I'd work on it while I awaited the FD to show up for the R400.

Splendid views! Thanks for sharing @kjop

Any or all. It's a model I don't have and hope to some day rectify. Meanwhile I'll have to be satisfied with other's good fortunes to own a much desired (by me) model.

The XR800's.

Now I know why it was parked. Cool! More tools...and I get more use out of the expensive repair stand....

It’s supposed to look like this

Thought I’d do a quick clean and lube on the M500 this morning. I set it in the stand and did a check on my recent FD adjustment. Hmmm something isn’t right. Chain is binding.

Pictures please @texmexas !

Ooof! That’s a tight fit @black lightning 1987

Well I’ll be a monkey’s Uncle! I just pulled up the 2001 catalog. It indeed does say for the Road Warrior frames that they are caad3 cyclocross. As best I could read anyway. The scanned pages get pretty blurry when zooming in. I have to zoom with my aging eyes.

It could be that all the stuff I read was coming from the absolutist point of view that the FD gap once adjusted should be no more than 2 mm above the outer chain ring. I admit I can suffer from precision measurement disorder from time to time. But in my limited experience you are probably...

Here is an answer to someone looking for a FD replacement: It seems like an innocent question, but the situation can be maddening when a replacement FD is needed for any of the 30-42-52 cranks. Front derailleurs have a spec that has been called by Shimano both "Min. difference between top and...

A short part to an explanation that I read: Shimano in their infinite wisdom has decided that for 2009 all of the road triple front derailleur’s they make, both 9 & 10 speed will have at the least a minimum requirement of an 11 tooth difference between the large and middle ring, for example...

And I don’t have a barrel nut for fine tuning cable tension on the front derailleur cable like I do on the rear cable. As pictured here: Not sure what that means going forward. I’m learnin’.

I somehow missed this label on the rear derailleur…doh! edit: rear derailleur cable pull is the same 8 or 9 speed. That is the info that I’ve found

Thanks! I may have found a substitute. Meant for a 9 speed. It’ll work, but it will have some chain rub during “cross chaining”. Might bother me or not. The “correct” one for proper chain ring tooth count and 8 speed is the goal. But not an absolute must have.

I found some good data while looking for a fd. Yes a 9 speed triple front derailleur will work. As long as it is meant for proper tooth count. Shimano changed the spread from 10T to 11T some time after 2007. Along with their front chainrings going to 50/39/30 (and others ie. 10 speed). Versus...