Shimano ultegra 6700 10 speed rear mechultegra rear derailleur with wide link design gives quick accurate shifts and excellent drivetrain efficiency features wide outer link plates increase pivot joint rigidity to reduce shifting deflection lightweight aluminium pulley cage helps reduce weight without sacrificing shifting performance wide gear ratio compatible up to 30t total capacity 34t rd 6700 ss 40t rd 6700 gs weight 190g ss a 2 year warranty is offered with all shimano products fr