KTM 90101080044 Duke Front Fork Lower Triple Tree Steering Nut Bearing

( Manufacturer Part Number: 90101080044 ), ( Part Type: Steering Bearing Fork )

Review KTM Duke Oem Front Fork Lower Triple Tree Steering Nut Bearing fits 390 2015–2022

The KTM 90101080044 is a critical component for the steering system of the 2015-2022 KTM 390 Duke motorcycle. Specifically, it is the front fork lower triple tree steering nut bearing. This bearing plays a crucial role in the proper functioning of the front fork and the overall handling of the bike.

The bearing is designed to provide a smooth and reliable connection between the triple tree and the lower fork tubes. It is made of high-quality steel, which ensures durability and resistance to wear and tear. The surface of the bearing is treated with a protective coating to prevent corrosion and ensure a long service life.

The bearing is a press-fit type, which means it is installed by compressing it into place using specialized tools. The diameter of the bearing is approximately 44mm, and it has a thickness of around 4mm. The bore diameter of the triple tree is slightly larger than the bearing diameter to allow for easy installation and removal.

The KTM 90101080044 is an essential replacement part for the 390 Duke motorcycle, especially for riders who frequently ride on rough roads or who have experienced wear or damage to the original bearing. Installing a new bearing can help improve the handling and stability of the bike, providing a smoother and more responsive ride.

When replacing the bearing, it is important to use the correct tool and follow the manufacturer's instructions carefully to ensure proper installation. It is also recommended to check the condition of other related components, such as the fork seals and the steering head bearings, to ensure they are in good working order.

In summary, the KTM 90101080044 is a high-quality, durable, and essential part for the steering system of the 2015-2022 KTM 390 Duke motorcycle. It is a crucial component for maintaining the handling and stability of the bike, and it is recommended to replace it if it shows signs of wear or damage.

Pros and Cons of Buying KTM 90101080044 2015-2022 390 Duke Front Fork Lower Triple Tree Steering Nut Bearing

a. Improved Safety: A worn-out or damaged bearing can compromise the steering stability of your motorcycle, potentially leading to accidents. Replacing it with a new one ensures better safety.

b. Smoother Ride: A new bearing ensures a smoother front fork movement, resulting in better handling and a more enjoyable riding experience.

c. Longer Service Life: Regularly replacing bearings can help prevent more extensive damage to the fork and other components, saving you money in the long run.

d. Enhanced Performance: A well-maintained motorcycle runs better and performs optimally, which can be crucial in competitive riding or track conditions.

a. Cost: Replacing a motorcycle bearing can be an expensive repair, especially for high-performance bikes like the KTM 390 Duke.

b. Time-Consuming: The replacement process can be time-consuming, requiring disassembly of the front fork and other components.

c. Potential for Damage: During the replacement process, there is a risk of damaging other components if not performed correctly.

While replacing the lower triple tree steering nut bearing on a KTM 390 Duke is an essential maintenance task, it comes with some drawbacks. The high cost, time commitment, and potential for damaging other components should be considered. However, the safety, performance, and longevity benefits often outweigh these cons. It is recommended to replace this bearing according to the manufacturer's recommended service interval to ensure optimal motorcycle performance and safety. If you are not confident in performing this repair yourself, consider seeking professional assistance from a qualified mechanic.

Details:

Chassis - Front Fork, Triple Clamp 2022 RC 390, Blue B.D. Shipping outside of the continental USA is extra. Shipping cost for all of us have gone up.

Chassis - Front Fork, Triple Clamp 2022 390 DUKE, Silver B.D. Chassis - Front Fork, Triple Clamp 2022 390 ADVENTURE, Orange B.D. Steering Hardware OEM, Removed off of: KTM 2018 Duke 390 Box 2, Notes: Good used part showing normal wear.

part #: 90101080044 prices

• $29.99-$41.57

specifications fotubrak:

• for models: 390
• for makes: Ktm
• for years: 2015-2022
• mpn: 90101080044
• part type: Steering Bearing Fork

seller fotubrak:

• # reviews: 11343
• rating: 99.8%
• city: ana, California

offer fotubrak:

• options: Ship-to-home
• availability: In Stock
• started: August 22, 2025
• quantity: 1
• sold: 0

returns fotubrak:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

general fotubrak:

• Suspension Handling > k Suspension Parts > k Legs Tubes
• condition: Used

payments fotubrak:

• credit card: Diners-club
• other
• wallet: Apple-pay

shipping fotubrak:

• class: Standard
• carrier: UPS
• service: UPS Ground
• transit: 4-7 Days
• cost: $10.99
• type: Fixed

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