EBMX Upgraded Rear Shock Spring for SurRon Ultra Bee Spring Weight:110nm 1 PSI 65 TPI 27

1 PSI 65 TPI 27 Tire Bead Wire Tire Diameter 26" Tire Intended Use Mountain Tire Type Clincher Weight 720 Weight (oz) 25

Rear Axle 12mm Thru x 148mmRim Width (Internal) 30Cassette Body Type Shimano Dynasys 11 Speed MountainValve PrestaWheel Size 29"Designed for ebike YesDefined Color BlackISO Diameter 622 / Road / 29"keyword search hybridkeyword search electric bikes electric bicycle e-bike e-bikesTire Type Tubeless Ready ClincherRim Material AlloyHub/Brake Compatibility Center-Lock Disc

Closure LaceGender/Age MensColor Gray Six/Core Black/Olive StrataShoe Size (US) 13Defined Color GrayActivity Cycling

}Zipp 101 XPLR MOTO Rim Strip/Tubeless Tape - 650b

EBMX Upgraded Rear Shock Spring for SurRon Ultra Bee Spring Weight:110nm 1 PSI 65 TPI 27Things sag as they get old, but your Ultra Bee spring doesn't have to! Unfortunately SurRon has fitted the Ultra Bee with very soft suspension, reducing confidence when hitting jumps or bigger obstacles. The biggest standout is the rear, replacing the spring is an easy upgrade and greatly improves the bike dynamics. 110NM recommended rider weight 80 90KG Increases rear stiffness, good for medium jumps and does not feel over sprung for general riding