LTWOO 105 Jockey Wheels: 13T/18T Pulley Set for Shimano R7000 Rear Derailleurs

This LTWOO 105 jockey wheel set provides a functional replacement or upgrade component for bicycles equipped with Shimano's R7000 series rear derailleurs. The product addresses the need for a compatible aftermarket pulley system, offering the specific 13-tooth upper and 18-tooth lower configuration. It is presented in a range of colour and edition variants—including 105, 5800, 6800, and UT designations, each with both colourful and economic versions—allowing for selection based on visual preference or component tier. The core value lies in its stated compatibility, providing a measurable alternative for drivetrain maintenance or tuning where the original jockey wheels require replacement.

Features and Construction

The primary feature of this product is its direct compatibility with a specific groupset. The construction details focus on the functional specifications necessary for installation and operation.

Material and Build

The source text does not specify the materials used in the construction of these jockey wheels. The product is identified by its model name, LTWOO 105, and its designated compatibility. The build is defined by its role as a large pulley system, as indicated in the product title, which typically aims to influence drivetrain performance characteristics, though specific performance claims are not made here.

Size and Practical Fit

The product is listed with a 'special size,' indicating it is designed to fit the specific mounting geometry of the Shimano R7000 rear derailleur. The concrete specifications provided are the tooth counts: a 13-tooth upper jockey pulley and an 18-tooth lower jockey pulley. These are the key measurable details for verifying compatibility and understanding the gearing ratio within the derailleur system. No further dimensional data, such as bearing size or overall width, is supplied.

Uses and Placement

This component has a clear, single application within a bicycle drivetrain system. Its use is strictly tied to its compatibility listing.

Event or Professional Use

For competitive cycling or professional maintenance, these jockey wheels serve as a spare or replacement part for the specified Shimano R7000 derailleur. The availability of different edition labels (105, UT, etc.) may allow users to match the component to the tier of their existing groupset for consistency, although the source does not elaborate on performance differences between editions. The large pulley design, as referenced in the title, is often associated with potential efficiency gains, but no supported claims regarding speed or power transfer are made.

Everyday Home Use

For the home mechanic or cyclist performing their own maintenance, this product offers a straightforward solution for replacing worn or damaged jockey wheels on a compatible R7000 derailleur. The clear compatibility statement reduces the risk of purchasing an incorrect part. The option between colourful and economic versions provides a simple choice based on budget or desired aesthetics without requiring technical knowledge about material differences that are not disclosed.

Benefits and Buying Value

The value of this product is derived from its specificity and the options presented within its defined scope.

Reuse and Low Maintenance

As a replacement part, its primary benefit is restoring a derailleur to full function, thereby extending the life of the existing R7000 component. The product description provides no information on lifespan, durability, or maintenance intervals for these specific jockey wheels, so any value regarding longevity is based solely on the generic function of replacing a worn part.

Why Choose This Product

The decision to choose this product hinges on verified compatibility with the Shimano R7000 derailleur and the preference for the offered 13T/18T pulley combination. The range of eight variants (combining model edition and colour version) provides a degree of choice where many aftermarket parts offer only one option. The value is practical and based on fit and selection, as no claims regarding superior performance, weight savings, or durability over other products are supported by the source text.