If you want to know more about Honda CBR 250R (model and version 2011), then there is no better place to read the official company (manufacturer) given owners manual to understand your motorcycle inside out.
It is also recommended for all new owners of CBR250R and CBR 250R ABS to read their owners manual for safe and optimal operation of their vehicle.
Download the official owners / service manual of Honda CBR250 / CBR250R and CBR 250R C ABS (soft copy 32KYJE000)
(PDF ~ 2MB / You may need adobe acrobat reader to view it)
You may also check out the following post about the Spare parts list of Honda CBR 250R