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Recumbent What IS that thing?! Recumbents may be odd looking, but they have many advantages over a "wedgie" bicycle. Discuss the in's and out's recumbent lifestyle in the recumbent forum.

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Old 06-29-09, 02:21 PM   #1
iconoclast
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DIY Chainring Guard

Well, here's more fodder for the group.
----
From time to time, I've caught the bottom of my jeans in my chainring, even though I wear an ankle strap.
Unfortunately, there isn't much available in the way of chainring guards.
I did look at the Kool Stop Chain Disk, but it wasn't what I wanted.
So, I bought a 52T chainring off ebay for $9.99 and custom fit it to my 44-32-22 crankset.
With this setup there is no interference with the derailleur shifting to all three chainrings.
And I personally think it looks better than some plastic disc.
And it works great.
----
Oh, and for those who are curious about the grey PVC.
That's my DIY fool-proof chain jump stop.
No more granny gear chain hops.
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File Type: jpg Chainring Guard 1.jpg (103.8 KB, 278 views)
File Type: jpg Chainring Guard 2.jpg (99.8 KB, 225 views)
File Type: jpg Chainring Guard 3.jpg (100.7 KB, 203 views)
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Old 06-29-09, 02:45 PM   #2
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I like that DIY chain jump stop and grey PVC blends in with the color scheme.
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Old 06-29-09, 08:33 PM   #3
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I don't see any teeth on that 52T chainring.
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Old 06-29-09, 09:04 PM   #4
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I don't see any teeth on that 52T chainring.
Here's the 52T chainring before I got my hacksaw, drill, grinder and sander out.
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Old 06-29-09, 09:28 PM   #5
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why are you riding in jeans? It just makes more fodder for the roadies.
DH
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Old 06-29-09, 09:43 PM   #6
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Let 'em talk.
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Originally Posted by bragi "However, it's never a good idea to overgeneralize."
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Old 06-30-09, 04:34 AM   #7
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why are you riding in jeans? It just makes more fodder for the roadies.
DH
Here in Oregon people are open to everyone doing their own thing.
All the upright bicyclists are quite friendly to me and always wave.
As for the jeans, I always wear whatever I'm wearing at the time.
Whenever I feel like going for a bike ride, I get my water and helmet and go.
For cool mornings I have my jeans on.
For hot afternoons I have my shorts on.
I've never worn any of those fancy bike clothes.
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Old 06-30-09, 01:21 PM   #8
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+1 on the no fancy bike clothes, they do nothing for my cadence or speed either. Like your homemade chain guard, something I would do too.
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Old 06-30-09, 02:04 PM   #9
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I've seen some HPV racers do something similar by cutting appropriately-sized disks out of plexiglas. That way, they can get any size they want or need.
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Old 06-30-09, 04:57 PM   #10
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Quote:
Originally Posted by iconoclast View Post
Here's the 52T chainring before I got my hacksaw, drill, grinder and sander out.
Ohhhh.....I did that once with a jigsaw for a single ring setup on a hybrid.
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Old 06-30-09, 04:58 PM   #11
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I've never worn any of those fancy bike clothes.
I guess I'm putting on airs with my Mt. Borah shorts.........
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Old 06-07-12, 09:55 AM   #12
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In place of the home-made chain jump fix, try the N-Gear Jump Stop, $12.40 shipped (using paypal to pay) and the seller is awesome to deal with.

http://gvtc.com/~ngear/index.html
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Old 06-08-12, 11:26 AM   #13
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Driveline chainring guards on eBay are another alternative

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Originally Posted by iconoclast View Post
... So, I bought a 52T chainring off ebay for $9.99 and custom fit it to my 44-32-22 crankset.
With this setup there is no interference with the derailleur shifting to all three chainrings...
Over a year ago I (based on postings by another recumbent rider either here or on BentRiderOnline) purchased a different item from eBay. Driveline (made in China) sells recumbent-sized (50+ tooth sized) chainring guards. I received a very nice CNC'ed chainring guard complete with mounting spacers and correct length chainring bolts. Being a smooth chainring guard, there aren't any teeth to embed into anything you crash in to or catch your clothing. These are still available on eBay. For example, there is one sized to to guard a 53T, BCD 130mm chainring (a common recumbent chainring size) for $17.99 + $8 shipping from gobike88:


If you prefer a made-in-the-USA guard of the proper size, they are available (even with custom CNC engraving) for roughly twice that price. For example, I think Purely Custom made them in the size you want (although not presently listed on their web site I'd still contact them), custom engrave if desired, and among their "Bash Guards" model lines offered, one has (although I do not know if it is available in a 53T size):
Soft Touch:The new standard in bashguards is the Soft Touch. This revolutionary product is unlike any other. It's thermoplastic polyurethane outer rim protects not only your bash guard, but the obstacles you come into contact with as well.
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Last edited by Giro; 06-09-12 at 06:27 AM.
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