Dear Singletrack Forum. I’ve got a Specialized 2013 Camber which needs a new inner chainring. It’s a 10 speed with 36/22 and its a SRAM S-1250. The inner ring is very worn. What should I be buying that will be a direct replacement? Many Thanks.

Your chainrings are 104 and 64 BCD, on a 4 arm spider, so as far as I can tell any 64 BCD inner chainring will fit. I’ve got a spare 22t ring that wil fit it, email me and I’ll let you have it for postage/Karma.

Email sent, many thanks : )