[PO AUG 2025] Shibata R31S340RD High-precision BB Upper Arm Short Type (Red)

Please Note: This is a PRE-ORDER.

Your order will be shipped as soon as the pre-order item arrives in stock. If your order includes both in-stock and pre-order items, the entire order will be held and shipped together once the pre-order item becomes available.

About Stock Arrival:

Some pre-order items are limited in quantity or may have Reduced production by the manufacturer.

Because of this, we might not receive the full amount we ordeRed.

If this happens, we’ll ship items in the order pre-orders were placed. (first-come, first-served basis)

If your order isn’t fulfilled in the first shipment, it will automatically move to the next batch.

Important Notes:

for some limited items or items with no restock plans, we may have to cancel your order.

Even if you pre-order early, we can’t guarantee your item will ship in the first batch.

About Release Dates:

Release dates or periods (if announced by the manufacturer) are shown on the product page.

However, release dates may be delayed due to the manufacturer’s circumstances.

Please treat release dates as estimates only.

Estimated Arrival (ETA): End of AUG 2025
PO Closes on 24th AUG

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Introduce a new standard of suspension accuracy and style with the Shibata High-Precision BB Upper Arm Short Type series. These innovative arms redefine your setup potential, offering the critical adjustment needed to achieve a narrower track width and refined handling characteristics. Finished in your choice of standout colors, they deliver both visual distinction and a tangible mechanical benefit, allowing you to sculpt your car's behavior with newfound clarity.

Key Features

• Narrow-Track Configuration: Enables a significantly narrower setup, overcoming the physical limitations of standard upper arms.

• Integrated Ball Bearings: High-precision BB construction ensures exceptionally smooth and consistent suspension movement.

• Strategic Shortened Design: Approximately 6mm shorter in total length compared to conventional upper arms for altered geometry.

• Dual-Purpose Application: Suitable for achieving a narrow track in the rear or for targeted weight reduction when used on the front.

• Premium Aesthetic Selection: Available in classic Black, distinctive Purple, and bold Red to accent any build.

Reasons This Belongs on Your Chassis

• Access Advanced Setups: Unlocks narrow-track configurations that were previously unachievable, expanding your tuning repertoire.

• Proven Competitive Pedigree: Features technology adopted and validated on the championship-oriented GRK5 platform.

• Optimize Suspension Kinematics: The integrated ball bearings minimize friction for truer, more responsive suspension feedback.

• Maximize Versatility: A single component that serves multiple goals, from altering geometry to reducing unsprung mass.

Product Information

• Product Line: Shibata High-Precision BB Upper Arm Short Type

• Color Options: Black (R31S340BK), Purple (R31S340PU), Red (R31S340RD)

• Core Specification: ~6mm shorter than standard upper arms

• Feature: Integrated high-precision ball bearings (BB)

• Application: Enables narrow settings on rear A-arm vehicles; can be used on front for weight reduction

Refine your platform with the components that offer a genuine advantage in both performance and presentation. The Shibata BB Upper Arm Short Type is the definitive choice for drivers dedicated to pursuing every last fraction of speed through meticulous engineering and superior hardware.