Manuals / Bontrager / Fitness & Sports / Bicycle Accessories

Bontrager 253427 owner manual Installation Instructions for the Experienced Mechanic

Models: 253427

1 4
Download 4 pages 13.82 Kb
Page 3
Image 3

INSTALLATION INSTRUCTIONS FOR THE EXPERIENCED MECHANIC

These instructions explain the steps to remove an existing crankset and install a new one. The correct installation of your crankset is critical to your safety, so this work should be performed only by an experienced mechanic. If you are not sure of your ability to correctly install this crankset and adjust the parts, have the crank installed by your Bontrager dealer.

Check all parts' compatibility before installing

The crankset interfaces with the pedals, bottom bracket, chain, and front derailleur with its shifter. Each of these parts must be compatible with the crankset for the systems of a bicycle to function correctly. If you are not sure if this crankset is compatible with your bicycle, consult your dealer.

Pedal removal and installation

To remove the pedals

Note: There are right and left pedals, usually marked with a letter stamped on the end of the pedal axle, or on the wrench flats.

1.Turn the right pedal spindle counter-clockwise to remove the right pedal, the opposite direction of tightening (Figure 3).

2.Turn the left pedal axle clockwise to remove the pedal.

To install the pedals

1.Apply a light coat of Wrench Force® synthetic grease or a similar lubricant over all the threads.

See your dealer for a recommended grease.

2.Place the pedal washer over the pedal threads.

3.Thread the pedal into the crank arm by hand.

4.Follow the instructions for tightening pedals in Inspect your crankset regularly

Crank arm removal and installation

The left crank arm is held in place by a crank bolt (Figure 2).

To remove a crankarm

1.Loosen the crankarm bolt on the left crankarm.

2.Continue turning the crank bolt to remove the crank arm.

To install a crankarm

With a self-extracting bolt, the parts must be correctly assembled (Figure 6).

1.Apply a light coat of Wrench Force® synthetic grease or a similar lubricant over all the threads, and the bottom bracket axle splines.

See your dealer for a recommended grease.

2.Align the splines of the axle with the crank arm, and slide the arm onto the axle.

When installing the crankarm, note the alignment of the opposite crank arm.

3.Carefully engage the threads of the crank bolt.

4.Tighten as in Inspect your crankset regularly.

Extractor

Crank bolt

Figure 6- Self-extractor bolt

parts

3

Page 2 Page 4
Page 3
Image 3
Bontrager 253427 Installation Instructions for the Experienced Mechanic, Check all parts compatibility before installing
Page 2 Page 4

253427 specifications

The Bontrager 253427 is a high-performance bicycle component designed specifically to enhance the riding experience for cyclists who demand both speed and durability. Renowned for its balance of lightweight construction and robust design, this component has garnered attention among cycling enthusiasts and professionals alike.

One of the standout features of the Bontrager 253427 is its exceptional weight-to-strength ratio. Engineered using premium materials, this component is designed to minimize unnecessary weight without compromising durability. This focus on lightweight design allows riders to accelerate more quickly and maintain higher speeds over longer distances.

The Bontrager 253427 incorporates advanced technologies that set it apart in the market. One notable innovation is its aerodynamic profile. The component has been tested in wind tunnels to ensure that it cuts through air efficiently, reducing drag and improving overall performance. This is especially beneficial for competitive cyclists looking to gain an edge over their rivals.

In addition to its aerodynamic advantages, the Bontrager 253427 features robust construction that can withstand rigorous use. The materials used in its production are chosen for their resistance to wear and tear, ensuring a long lifespan even under the most challenging riding conditions. This durability translates to less frequent replacements, making it a cost-effective choice for serious cyclists.

Another important characteristic of the Bontrager 253427 is its compatibility with a variety of bike models. This versatility makes it a popular choice among riders who own multiple bikes or who frequently change their setups. The component’s easy installation process further enhances its appeal, allowing cyclists to upgrade their gear quickly and efficiently.

The Bontrager 253427 also emphasizes comfort. Its design incorporates features that reduce vibrations and shocks, leading to a smoother ride. This attention to rider comfort is crucial for long-distance cyclists who need to minimize fatigue.

In summary, the Bontrager 253427 is a well-engineered bicycle component that combines lightweight design, aerodynamic efficiency, durability, compatibility, and rider comfort. Whether for competitive racing or casual riding, it represents a reliable choice for cyclists seeking to enhance their performance and enjoyment on the bike.