If you plan on riding your Ryker with a passenger, a passenger backrest is highly recommended. The backrest not only provides your passenger with back support, but also provides a safety element.. ensuring that they don’t fly off the back of the Ryker under hard acceleration. So we’ve partnered up with the guys over at Spyder Extras to bring you this bolt-on passenger backrest. This backrest features a dense foam pad that measures in at 13″ wide by 6″ tall. The backrest also features integrated risers bringing the backrest up to a 11″ tall when measured off the passenger seat. The overall dimensions on this backrest provides your passenger with ample back support so that they’ll enjoy that next road trip. Installation could not be easier. This backrest is pre-assembled and simply attaches to the underside of the BRP Max Mount with the 4 screws provided.