BSR Quantum X

BSR Racing Chassis 2025 Models

Quantum X: Designed for most can get out of a chassis the XR features extended side rails and a longer front end for enhanced stability. This model is crafted with high-quality ceramic components, includes premium bearings.

All chassis are made to order if stock is unavailable. This handcrafted process ensures exceptional quality, with a lead time of 1-2 weeks for production. No robots or CNC machines are used in manufacturing, ensuring every build meets the highest standards.

Set-Up Specifications

• Left Side Weight: 59% - 61%
• Rear Weight: 54% - 55.5%
• Cross Weight: 65% - 68%
• Tire Stagger: 5/8" to 1" rear; 1-1/4" to 1-1/2" front
• Camber: 3° split

Camber Considerations:

• Maximum 3.0° negative camber for the RF.
• Maximum 1.0° positive camber for the LF.

Toe Adjustments:

• Standard setup includes 1/16" toe-out on all configurations.

Caster Considerations:

• 8° of positive caster for the LF.
• 12° of positive caster for the RF.

Note: Positive caster occurs when the top of the caster block leans back towards the rear of the kart.

Every SR Racing chassis is engineered to perform at its best, tailored to your specific needs, and backed by our commitment to quality and craftsmanship.