Campagnolo 11 Speed Chain Tool S3-Pro-Rugged PeakFuel Gels were designed to

PeakFuel Gels were designed to provide a great source of compact carbohydrates to provide fast energy during exercise and endurance sports

Compatible with electrical gears

Works with 650b or 700c wheels - simply cut to length

enabling precise and accurate truing

Campagnolo 11 Speed Chain Tool S3-Pro-Rugged PeakFuel Gels were designed toCAMPANGOLO 11 SPEED CHAIN BREAKER TOOL The 5. 5mm width of the Campagnolo's 11 speed Ultra Shift chains require you to use only the 11 speed only chain tool to join an 11 speed chain Campagnolo chain. This is different to the 10 speed tool! Additionally you MUST use the 11 speed Ultra link to join the chain. Please see the link below for a how to guide for this procedure if you are at all unsure of the process.