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What is this called?

Old 06-09-12, 12:42 AM
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What is this called?

Please excuse this noob question, but could anyone tell me what exactly this part is called?



The translucent blue thing.
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Old 06-09-12, 12:45 AM
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Chain guard?
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Old 06-09-12, 12:57 AM
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Does it go by a different name? 'Cause I've only ever known this kind of chain guard:

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Old 06-09-12, 01:00 AM
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Chainring guard seems to be used for that.
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Old 06-09-12, 01:03 AM
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Pants saver??
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Old 06-09-12, 01:25 AM
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chainring guard?
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Old 06-09-12, 01:28 AM
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Yeah, chainring guard must be what it's called. Is there anywhere I could purchase the plastic/translucent ones like in the first photo?
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Old 06-09-12, 01:41 AM
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Originally Posted by luxo
Yeah, chainring guard must be what it's called. Is there anywhere I could purchase the plastic/translucent ones like in the first photo?
nope, work at an lbs and get asked this occasionally

problem is, there isnt a standard mounting hole pattern for the plastic ones; basically they are integrated with the crank they come with; no aftermarket product available

A similar device used in mountain biking is a bashguard -made of steel not plastic, bolts using chainring bolts in standard chanring patterns, so sacrifice your big ring for a guard.....
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Old 06-09-12, 02:25 AM
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I see. Very helpful, thanks mate.
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Old 06-09-12, 04:19 AM
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can you get one of these to protect the outer ring, not replace it?
or is OP wanting something to keep trouser legs out of the chain?

https://www.ebay.com/itm/Rock-ring-bi...-/320918992342
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Old 06-09-12, 07:07 AM
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The trouser leg function is performed by the "Kool-Stop Chain Disc". They come in a couple of sizes depending on the tooth count of your chainring and they mount with a center screw which goes into the crank arm hole so that they are agnostic of the chainring bolt pattern. I Have two and spent a few minutes with WD-40 and my fingernail taking off the dorky logos but they work fine and don't make noise. I had to open up the clearance slot a little for one crank but that was just a few minutes work with my Dremel.
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Old 06-09-12, 09:27 AM
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Originally Posted by luxo
I see. Very helpful, thanks mate.
Americans call each other mate now?

Heh.
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Old 06-09-12, 10:20 AM
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Originally Posted by Kimmo
Americans call each other mate now?

Heh.
Only when they're speaking to Aussies.
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Old 06-09-12, 10:28 AM
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While plastic chain guards like the one the OP has aren't generally offered in the after-market, there are a number of other options which serve the same purpose.

If the crank has a standard 110mm or other common BCD he might buy a bashguard, or chain keeper ring (like for cyclocross) which will serve the same purpose.

Otherwise there's the universal (two sizes) Chain Disc sold by the folks at KoolStop.
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Old 06-09-12, 02:05 PM
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Originally Posted by Kimmo
Americans call each other mate now?

Heh.
I felt it was a g'day to start.
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Old 06-09-12, 02:38 PM
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https://www.universalcycles.com/shopp...hp?category=58

https://store.velo-orange.com/index.p...ing-guard.html
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