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Cheap chainring bolt spacers(13 posts)

Cheap chainring bolt spacersLC
Apr 23, 2003 12:30 PM
I hate to see those SS/fixed bikes with double rings ;)

A little tip is to take a old chainring and hack off the bolt attachment areas. File them to smooth out your work, and you got a nice set of spacers to mount that chainring nicely on the outside.
Too much work for meStraightblock
Apr 23, 2003 2:03 PM
A set of single chainring bolts is only about $5 at the corner BMX shop. I'd rather spend the time riding than sawing.
Agree...Steve_0
Apr 24, 2003 3:37 AM
if $5 bucks is too much; the corner HW store has washers for $.05
I've even gone the no-cost routeStraightblock
Apr 24, 2003 7:43 AM
With some combinations of bolts & chainrings, I've flipped the chainring over so the countersunk side of the holes are against the spider of the crank. Sometimes that will allow a double chainring bolt to tighten before it bottoms out on the nut.

I'm using flatwashers on a road bike conversion project bike, but my primary fixed gear and my SS mtb both use single chainring bolts. IMO it's kind of a finishing touch.
re: Cheap chainring bolt spacersTrevo
Apr 23, 2003 9:45 PM
Nice...Ill have to try that sometime.
been therectisevn
Apr 24, 2003 7:56 AM
I agree with the other posters that a set of chainring bolts or even washers are a way better choice but I did do exactly as you described when I converted my first fixed gear. I had a slightly lesser bike budget then so it made sense at the time. I used a hacksaw to carve the ring up and a bench grinder to smooth out the edges, looked acceptable but not something Im likely to do again. good tip for a no money conversion though.
another low-buck trick is to weld a BMX freewheel together....ukiahb
Apr 24, 2003 9:32 AM
I tried a track cog on my converted FG bike and the chainline wasn't right, but it is almost perfect w/ a BMX freewheel, so I welded the freewheel together and it works great...and Shimano BMX freewheels are considerably cheaper than Surly track cogs for some reason. Total investment is now $20 for BMX chainring bolts and a BMX freewheel. Of course the correct and safer way to do it is w/ a proper FG hub w/ a lockring...but my freewheel hasn't unscrewed yet
How do you get the freewheel to stay put?, might try this. NMTrevo
Apr 24, 2003 8:29 PM
How do you get the freewheel to stay put?, might try this. NMukiahb
Apr 25, 2003 6:56 AM
Some people use Loctite, though I haven't yet, just got the cog good and tight w/ a chain whip. As the other poster said, you should definitely use front and rear brakes if you use a freewheel hub, just in case the cog does unscrew. There is a lot of good info on FG conversions at http://sheldonbrown.com/fixed/index.html
UnscrewingSteve_0
Apr 25, 2003 3:33 AM
I've been using a fixed cog on a freewheel hub for over a decade, and it's never loosened. And my FG is prettymuch my only bike.

I think the fear of unscrewing is overrated. Then again..i use brakes.
UnscrewingTrevo
Apr 25, 2003 9:47 AM
I had a brief problem with my cog unscrewing. But when i got to work, I removed everything and used this green locktite. Man I dont know if it was expired,old, or if its just glue consistency all the time. Got everyting snugged down and havent had a problem. I dont use brakes either.
Getting a Surly wheel soon though.

Trev
Unscrewingsnakedust
May 11, 2003 1:20 PM
the thing to do is to get hold of a lockring from an old cup and cone bottom bracket. after fitting the sprocket fit the bottom bracket lockring onto the hub and tighten. i always find that i carnt use my lockring tool as there is no room so i just use a screwdriver and tap the lockring on with a hammer.
re: Cheap chainring bolt spacerssnakedust
May 11, 2003 1:13 PM
what i done was to use a shorter bottom bracket and just attach my chain ring on the outer position of my double chainset. i then used single chainring bolts to attach the chain ring. the chainset looks like a single. I have used this method on two of my bikes with an old raleigh chainset and a suntour one.