Atera SIGNO AS aluminium roof bars no. AR5049 Fully assembled and ready to go with 2 special tightening keys included. Bar length: 122 cm Load carrying weight: 75 kg Roof bar dimensions 58mm wide by 28mm deep. The 'T track' slots use 20mm x 20mm adapters, i.e. the same as Thule's aerobars. Bought early in 2015 and used a handful of times to carry 3 mountain bikes. Change of car forces sale. RRP £125 but asking price £80. Additional spare key worth £7.50 included.