Direct Drive Chainring Type?
01-29-21, 02:32 PM
#1
Junior Member
Thread Starter
Direct Drive Chainring Type?
I recently purchased a mountain bike on Craigslist and it came with a Shimano Deore LX Crank (FC-M570) set up as a 1X drivetrain. The 4-Arm Adaptor (spider mount) was not used and in its place is a 34t chainring with the same eight spline interface as the 4-Arm Adaptor. Looking around I have yet to find a chainring with this type of interface. The chainring does not have any markings indicating it's origins or manufacturer. Does anyone know what type of chainring I have. I tried to upload photos but the forum said I have to have ten posts before I can attach photos?? Yes I am new to Bike Forums.
01-29-21, 05:56 PM
#3
Junior Member
Thread Starter
Pictures are in my member album. I think.
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01-29-21, 06:16 PM
#4
Really Old Senior Member
Did you contact the seller to see if they have the parts?
Here's the doc-
https://si.shimano.com/pdfs/ev/EV-FC-M570-4-1763.pdf
Here's the doc-
https://si.shimano.com/pdfs/ev/EV-FC-M570-4-1763.pdf
01-29-21, 07:18 PM
#5
Junior Member
Thread Starter
Thanks B.K. for the parts list. No luck with the seller. Were you able to see the photos I placed in my member album. I'm new to this (Forum) and not quite sure if my photos are available.
01-29-21, 07:47 PM
#6
Really Old Senior Member
If you can't get the part(s) you need, it looks like you'll simply have to get another crankset. Probably a new BB (Bottom Bracket) to match the crank too.
22-32-4x cranks are readily available for fairly cheap.
You can try a web search for the parts you need since you have the PN.
Likely, IF they are available, the cost is more than a new crank.
22-32-4x cranks are readily available for fairly cheap.
You can try a web search for the parts you need since you have the PN.
Likely, IF they are available, the cost is more than a new crank.
01-30-21, 06:19 AM
#7
Hello
Pictures from O.P. Album
I recently purchased a mountain bike on Craigslist and it came with a Shimano Deore LX Crank (FC-M570) set up as a 1X drivetrain. The 4-Arm Adaptor (spider mount) was not used and in its place is a 34t chainring with the same eight spline interface as the 4-Arm Adaptor. Looking around I have yet to find a chainring with this type of interface. The chainring does not have any markings indicating it's origins or manufacturer. Does anyone know what type of chainring I have. I tried to upload photos but the forum said I have to have ten posts before I can attach photos?? Yes I am new to Bike Forums.
01-30-21, 07:51 AM
#8
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That is an early version of Shimano's direct mount design. My research indicates that the M950/952 cranksets used the same interface, but the chainring is not quite as thick at the interface, so they may need a thin spacer under the lockring. Garbaruk still makes chainrings, because the M950/952 are popular with the vintage MTB crowd. https://www.garbaruk.com/shimano-xtr...tml?category=1
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01-31-21, 11:01 AM
#9
Junior Member
Thread Starter
Thanks dsaul for your information regarding compatable Shimano cranks and the great link to the Garbaruk website. Awesome!!
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02-01-21, 02:10 AM
#10
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Back in the day I would go to my local bike shop or Halfords and buy a chain for my single speed or 5-speed derailleur bikes.
Nowadays I have no idea what I want for my single speed and 3-speed/5-speed derailleurs, only that I need to replace them soon.
Where does one start?
Nowadays I have no idea what I want for my single speed and 3-speed/5-speed derailleurs, only that I need to replace them soon.
Where does one start?
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