EBMX Upgraded Rear Shock Spring for SurRon Ultra Bee

The Ultra Bee ships with very soft rear suspension from the factory — it sags under load, bottoms out on medium hits, and kills confidence on jumps. Swapping the spring is one of the easiest and most impactful upgrades you can make.

Spring Options

• 110NM — Recommended for 80–90kg riders. Noticeably stiffer rear, better corner control, reduces bottom-out on medium impacts. Not over-sprung for trail riding.
• 120NM — Recommended for 90–110kg riders. Dramatic stiffness increase, big improvement for larger jumps and heavy hits. Ideal for MX-style riding.

Installation Note

Spring compression tools required. Highly recommended to have a suspension shop perform the installation.

Fitment

• Surron Ultra Bee

Veteran-owned. Ships fast from Chicago.