I need a new double crankset to run with my 10 speed Shimano drivetrain. I was looking at the FSA Afterburner 386 on ebay because they seem pretty cheap and lightweight. There are two versions on ebay, a 9sp 40-27t and a 10sp 39-27t. The 10sp is $30 more. Is it worth it?
9sp: FSA Afterburner 386 27/40 MTB Compact 175mm MegaExo S9 Crankset - 310-0422 - NEW 400310036131 | eBay
10sp: FSA Afterburner 386 27/39 MTB Compact 175 MegaExo X-10 Crankset - 310-0437 - NEW | eBay
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