Ride Eng.'s new longer billet pull rods are a key ingredient to balancing out the new 2017-18 suspension, increasing traction on acceleration utilizing all the travel and improving handling. There is added confidence to ride aggressively. Works equally well on the 2018-21 CRF250R. Recommended sag with the Rideng Pull Rods is 102-105mm. NOTE: These pull rods can also be used on the CRF450L for taller riders looking primarily for performance improvements in handling and balance. These lower the bike 8mm. Recommended sag is 100-102mm with the forks at 5mm from flush.