Since their introduction in 1998, the Twinwall has been the handlebar of choice for more professional race teams and has helped more riders win championships than any other handlebar in the world. The revolutionary Twinwall® handlebar is an oversized diameter 1 1/8" (28.6mm) handlebar which utilises two tubes, one within the other, borrowing principles from aircraft design to give the best combination of lightness, strength and safety 7010 T73 aluminium construction, anodised to prevent corrosion Inner tube manufactured from ultra high strength 7010 T6 hard anodised aluminium Dual tubes, one within the other for additional strength and security 29 step precision manufacturing process Includes Renthal injection moulded foam bar pad (colour of pad may vary from the one shown in image) Available in black, or green Image for illustrative purposes only and may not show the exact bend / dimensions. Please see the chart below for measurements. Part Number 998