MONTESA 5139.124 Cota Internal Fork Spacer Nos 349 P/n 51M

( Brand: Montesa ), ( Manufacturer Part Number: 5139.124 ), ( Part Type: Fork Spacer )

Review MONTESA Cota 349 Internal Fork Spacer P/n Nos 51m fits 1982–1983

The Montesa 5139.124 Cota 349 internal fork spacer is a crucial component for the maintenance and proper functioning of the suspension system on Montesa motorcycles manufactured between 1982 and 1983 with the model number Cota 349. This specific part is designated by the Montesa part number 51M.

The internal fork spacer is a thin, cylindrical piece made primarily of metal. Its primary function is to provide the necessary spacing between the inner fork tubes of the motorcycle's front suspension system. This component ensures that the fork tubes maintain the correct distance from each other, which is essential for the optimal alignment of the steering head bearings and the proper functioning of the front fork seals.

This Montesa part is an essential replacement for worn-out or damaged spacers. Over time, the internal fork spacer may become worn due to the natural aging process or from the rigors of regular use. When this occurs, it can lead to various issues, such as incorrect steering geometry, poor handling, and the potential for more significant damage to the suspension system.

Installing the new Montesa 5139.124 Cota 349 internal fork spacer is a relatively straightforward process, typically involving the removal of the old spacer and the installation of the new one between the inner fork tubes. It is recommended that the replacement be performed by a qualified motorcycle mechanic to ensure that the procedure is carried out correctly and that the motorcycle remains safe to ride.

In summary, the Montesa 5139.124 Cota 349 internal fork spacer is a vital component for the suspension system on Montesa motorcycles from 1982 to 1983 with the model number Cota 349. This part ensures the proper alignment of the steering head bearings and the functionality of the front fork seals by providing the correct spacing between the inner fork tubes. When worn, it's essential to replace the old one with a new Montesa 51M internal fork spacer to maintain the optimal performance and safety of the motorcycle.

Montesa Cota 349 Internal Fork Spacer (51M): A Comprehensive Analysis

The Montesa Cota 349 internal fork spacer with part number 51M is a crucial component for maintaining the proper functioning of the motorcycle's front suspension system. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this part.

1. Proper Functioning: A worn-out or damaged fork spacer can lead to issues with the steering and handling of the motorcycle. By replacing it with a new one, you ensure that your Cota 349 maintains optimal performance and safety.

2. OEM Compatibility: This Montesa part is designed specifically for the Cota 349, ensuring a perfect fit and compatibility with other components.

3. Durability: High-quality OEM parts like this one are known for their durability and longevity, allowing you to ride with confidence for an extended period.

1. Cost: Original equipment manufacturer (OEM) parts can be more expensive compared to aftermarket alternatives. However, the investment in a Montesa-approved part guarantees compatibility and reliability.

2. Availability: Depending on the supplier or distributor, availability of this specific part may be limited. It is essential to check with multiple sources to ensure availability and competitive pricing.

Investing in a Montesa Cota 349 internal fork spacer with part number 51M offers several advantages, including optimal performance, OEM compatibility, and durability. Although the cost might be higher than aftermarket alternatives, the investment guarantees the peace of mind that comes with using a genuine Montesa part. It is essential to consider the availability of the part to ensure a timely repair or replacement.

If you own a Montesa Cota 349 and require a replacement fork spacer, we recommend purchasing the Montesa part number 51M. Although the cost may be higher than aftermarket alternatives, the assurance of compatibility and the durability of an OEM part make it a worthwhile investment. Make sure to check with multiple suppliers or distributors to ensure availability and competitive pricing.

Details:

Measures 30mm OD x 23 / 27 ID. Does not fit Cota 247, 349 early or 348 model's. Double checked in our manuals. Montesa Cota 349 Internal Fork Spacer p/n 5139.124 NOS 51M 1982 1983 Fits Later model's.

Montesa OEM part. Part is a 10 out of 10, being new and 1 the worst condition.

part #: 5139124 price

• $14.75

specifications fotubrak:

• for years: 1982-1983
• brand: Montesa
• mpn: 5139.124
• part type: Fork Spacer

payments fotubrak:

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

returns fotubrak:

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

shipping fotubrak:

• carrier: USPS
• class: Standard
• type: Calculated
• transit: 5-9 Days
• cost: $5.26
• service: USPS Ground Advantage

general fotubrak:

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

offer fotubrak:

• availability: In Stock
• best offers: True
• options: Ship-to-home
• sold: 0
• started: October 12, 2025
• quantity: 1

seller fotubrak:

• city: Canby, Oregon
• rating: 100.0%
• # reviews: 26230

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