Originally Posted by
Classtime
I have a new to me '70 PX-10 that will become a daily commuter (37 mile round trip) and candidate for L'Eroica California 200k.
The Simplex Criterium work fine in the stand and around the block but I want something more durable long term. This bike will remain a 5 speed with the Stronglight 93 crankset and original un-modified dropouts. I don't need much capacity as I consider myself quite heroic and will likely run nothing gentler than a 14/24.
My questions:
1.) Will ALL of the newer Simplex RD like Super LS 5000 and 6000 or SX 410 and 610 fit the simplex dropouts ?
2.) Will the Spidel and Gipiemme rebrands also fit?
3.) Are there other makes/models that would be plug and play with these dropouts?
Do these "modern" all metal derailleurs have any weaknesses that I should be aware of as I look for a used one?
1. yes
2. yes
3. yes
4. not particularly but non-Simplex derailleurs require the 9mm mounting hole to be threaded with a 10mm x 1mm tap.
Not being sarcastic but... Google is your friend... It's the easiest way to search the Bike Forum archives. I did a 2 minute search and came up with these results.
Check out my messages in these threads, these 2 offer the most information for your requirements:
http://www.bikeforums.net/classic-vi...-capacity.html
http://www.bikeforums.net/classic-vi...-10-frame.html
These have some helpful info too.
http://www.bikeforums.net/classic-vi...not-happy.html
http://www.bikeforums.net/classic-vi...ige-shift.html
http://www.bikeforums.net/classic-vi...i-looking.html
A Simplex SX410 or SX610 would be a good choice. They work well and are still available at reasonable prices. You can even find them badged Peugeot. They are heavier than the SLJ derailleurs but they're more robust and actually shift better
If you go this route make sure to get a direct mount version, not one with a "claw mount"...
Hope this helps.
verktyg
Chas.