Righetti Ridolfi K711N 40mm Rear Wheel Hub - 115mm Length Black - Shifter & 206 Karts
$124.17 USD
Sale price
$124.17 USD
Regular price
Maximizing rear-end grip and stability demands high-caliber go kart components, and the Righetti Ridolfi 40mm x 115mm rear hub delivers exactly that for high-horsepower applications. Designed specifically for karts running a 40mm rear axle, this extended 115mm hub is the definitive solution for dialing in traction on low-grip circuits or managing the aggressive torque of shifter karts. By widening the clamping surface and extending the leverage point on the axle, this hub effectively stiffens the rear assembly, reducing unwanted flex and ensuring your power translates directly to the tarmac.
Engineered for Unrelenting Durability
When you are pushing the limits of your chassis, reliability is non-negotiable. Milled from a solid billet of high-grade aluminum and finished with a hard-wearing black anodized coating, the K711N hub resists the corrosive effects of track debris and harsh racing environments. Unlike standard hubs that can warp or slip under extreme lateral loads, this 115mm variant utilizes a robust clamping design alongside integrated 8mm keyways to lock onto the axle with zero play. Whether you are rebuilding your entire rear assembly or just swapping out worn mounting hardware, this hub guarantees a bulletproof fitment.
Seamless Integration with Your Setup
Tuning a kart requires a holistic approach—from optimizing your engine parts to refining your turn-in response with a go kart steering wheel upgrade. This Righetti Ridolfi hub complements those modifications by anchoring the rear end, allowing your chassis to track true through high-speed sweepers. It features the standard European bolt pattern (3/58) and comes pre-fitted with heavy-duty M8 steel wheel studs, making wheel changes in the hot pits fast and secure. If you are already running a precision go kart steering kit, adding this 115mm rear hub will balance the chassis dynamics, giving you the confidence to attack apexes without fear of the rear stepping out unpredictably.
Technical Specifications & Features
- Extended 115mm Profile: Maximizes rear grip and chassis stiffness, ideal for shifter karts and high-horsepower classes.
- 40mm Axle Compatibility: Precision-machined bore fits seamlessly onto standard 40mm European and modern 206-specific axles.
- Billet Aluminum Construction: Offers an exceptional strength-to-weight ratio, reducing unsprung mass without sacrificing durability.
- Black Anodized Finish: Provides superior corrosion resistance and a sleek, professional aesthetic in the paddock.
- Integrated M8 Steel Studs: Factory-installed wheel studs ensure secure wheel mounting and strip-resistant longevity.
- Standard Euro Pattern: Utilizes the universal 3/58 bolt pattern for broad compatibility with modern kart wheels.
- 8mm Keyway: Locks securely into the axle keyway to prevent rotational slipping under heavy acceleration.
Frequently Asked Questions
Q: Why should I choose a 115mm hub over a standard length hub?
A: The 115mm length provides a wider clamping surface on the axle, which increases chassis stiffness and rear-end grip. This is particularly beneficial for high-horsepower shifter karts or when racing on low-grip track surfaces where you need to maximize traction.
Q: Is this hub compatible with my 40mm axle?
A: Yes, the K711N is precision-machined specifically for 40mm rear axles, which are standard on most modern European karts and 206-class chassis.
Q: Does this hub come with the necessary hardware to mount my wheels?
A: Yes, this hub comes pre-fitted with heavy-duty M8 steel wheel studs, allowing for a secure, strip-resistant connection to your wheels using the standard 3/58 European bolt pattern.
Q: How do I ensure the hub doesn't slip on the axle during acceleration?
A: The K711N features an integrated 8mm keyway. Ensure your axle key is properly seated in both the axle and the hub keyway before tightening the clamping bolts to prevent any rotational slipping.
Q: Can I use this hub on a 30mm axle?
A: No, this hub is designed exclusively for 40mm axles. Attempting to install it on a 30mm axle will result in a poor fit and potential safety hazards.