SRAM S300 Courier Crankset

I'm very pleased with this crankset. You're probably wondering if it's worth it to upgrade to this from your current square-tapered crankset. Let me tell you, it's like night and day, and well worth every penny. This SRAM S300 is very well engineered, well made, smooth and well balanced, very solid, and it's not too heavy. I was, especially, pleased that my bike's chain-line remained perfectly straight after installation. The difference in ride quality between the S300's spline-drive and an old-school square-tapered set was immediately apparent.Something worth noting are the chainring nut/bolts. You may have heard people commenting on how the nut/bolts are, apparently, glued together and impossible to remove without drilling. Well, they're definitely stuck on there and must be drilled off. I tried using the proper tools to properly remove them, and even took it to the bike shop to see if they'd have better luck than I did, but no dice; had to be drilled, so make sure that you buy some extra chainring bolts if you intend to change out your chainring. Use a very large metal drill bit to eliminate the entire chainring nut(s) from the back side. This will, probably, damage the included chainring and void any included warrantee, so drill at your own risk. Make sure to remove all metal shavings from bearing surfaces before installing.Information that wasn't included (in my box, at least):1) The two little washers that are included are to be installed on your pedals, to protect the crank-arms from pedal installation damage.2) You'll need both a 10mm and 8mm hex-bit (allen-tool) to install the the non-drive crank-arm. The 8mm crank-bolt torque spec is 48Nm-54Nm (35ft.lb-39ft.lb). The metal cap that covers the crank-bolt has a 10mm hex fitting, and hand snugging it is sufficient. I recommend taking to your local bike shop, if you don't have the proper tools for the installation, and/or you don't feel confident about installing the part.3) Make sure to use bicycle, or any other good waterproof (marine), grease for assembly of your bottom-bracket. Walmart carries a decent marine grease.

This crankset really slaps my pickle, let me tell you. It was extremely affordable and is buttery smooth, too. I will never go back to the regular bottom bracket cranksets of old, no sir, this is a new age and a new millennium for the sleekest cranksets of all: the Courier Crankset. Buy it and don't look back (unless you're swapping lanes, then please, check for an oncoming car).

A very nice high-quality single speed crankset with an excellent bottom bracket included.IMHO the only difference between the S300 and the Omnium crankset is one of BCD. If you think you're putting out so many watts you can deflect a S300 you're either mistaken or getting all your gear for free from your sponsors. Rather I think one should choose between the two excellent choices based on chainring selection. If you're happy with the rings that exist in the 130 world, go with the S300 and save a couple bucks, if you want or need chainrings which only come in 144 then grab an Omnium. Either way you've made a sound choice.

Best set of cranks I've tried. Super stiff. Easy to maintain. Love them so far. Used them on a track build. Great product!

For around $120, you are getting a lot. Been a big fan of SRAM products ever since I got into fixed riding 2 years ago. Till today I never ran into any issues with their products, especially their GXP line. If you’re in the market for a new crankset and have your eyes on this, I’d say get it. Or save up 80ish more dollars and cop yourself some Sram Omniums, reward yourself haha.Couple things to note.Chainring is 130bcd, this means you cannot use standard 144bcd track chainrings on here. Not that big of an issue but for some, this may be a complete deal breaker.Chainring seems to be very thin, most likely for 3/32 chains. However, you can still use a 1/8 chain on this chainring. Works completely fine.Conclusion?Cop this, now.

Major upgrade if your running a square taper bottom braket. I can't tell you all the things this crankset "fixed" on my bike; from speed to increased efficiency. I believe the this set could be used with 1x drive train too. Best upgrade I have bought!Only two worries. One, the sprocket squeaked a bit on first install.(Thought it was the screw tightness between the sprocket and crank at first; they where correct. Just kept lubing the screws where the sprocket connects to the crank. It's lightened almost gone away). Two, the bottom bracket has play in it. (When I say "play" I mean a fraction of a millimeter at most. I can't feel it while riding. Dosen't affect anything I noticed in over 300 miles. )