Zinn's Big and Tall Bike shop is now offering the widest road bike handlebars on the market. We have JK Professional drop bars in 46cm, 47cm, and 48cm. All are measured center to center, which means that the JK 46cm is wider than most other brands' 46cm bars. No other brand makes a 47cm or a 48cm. No longer do tall cyclists have to rely on a handlebar that isn't wide enough for broad shoulders.