The "E" part of an electric bike has been covered previously:

> >Electric Bike Motors Introduction

> >An Introduction to Electric Bike Sensor and Controller

> >Understand the Basic: E-bike Battery Explained

Although there are still some gaps, we also need to pay attention to other components of the electric bike, such as the braking system and the transmission system.

Here's some advice on how to choose these two components.

 

Brake System:

 

E-bikes are faster than traditional bikes, so they require better braking systems, which usually use disc brakes commonly found on mountain bikes. Disc brakes are generally classified as mechanical disc brakes and hydraulic disc brakes. Mechanical disc brakes operate by pulling the brake lever, causing the caliper to grip the disc to slow down the bike, while hydraulic disc brakes are more expensive and use a hydraulic system to transmit force to slow down the bike.

If you want the braking reaction of your electric bike to be more immediate, it is best to choose hydraulic disc brakes because they have better braking performance and greater braking force, which can slow down the wheels faster, and their braking performance won't weaken over time.

When choosing hydraulic disc brakes, there are many well-known manufacturers to choose from, such as Tektro, Magura, SRAM, and TRP. These brands have good reputations and high-quality products, but their prices vary from high to low according to quality.

If you plan to upgrade your brake system, in addition to the type and brand of the brake, you should also consider the following.

 

Brake disc diameter:

The larger the brake disc, the greater the braking force and the better the heat dissipation performance. The diameter of our brake disc is generally 203mm, which is perfectly suitable for mountain biking.

 

Number of pistons in the caliper:

In the brake system, the piston is a moving part of the caliper. They are pushed out to compress the brake pads and then brake the wheel. The more pistons, the greater the braking force and the better the braking performance, so a 4-piston brake caliper is usually more suitable for models such as mountain bikes that require higher braking performance.

 

Brake pad:

As a wearable part, the brake pad sometimes requires timely maintenance. If you are not satisfied with the braking performance, you can also replace and upgrade the brake pads. Different brake pads are more suitable for different conditions. Generally, metal brake pads are more durable than organic brake pads but do not have as good a braking performance as the latter.

 

Brake cable:

What you should know is that the length of the line should match the frame, and the diameter is generally 5mm or 6mm. Also, the material and connector should be carefully considered.

 

Transmission System:

There are two common types of transmission systems on the market: internal and external. Generally speaking, external transmission systems are more common and usually consist of a cassette, crankset, chain, and front and rear derailleur.

When choosing to upgrade or change the transmission system of an electric bike, several factors need to be considered.

 

Gear ratio:

(image credit: It Still Runs)

The gear ratio refers to the ratio of the number of teeth on the front and rear chainrings. Different gear ratios are suitable for different riding environments and needs. The more teeth the rear chainring has, the easier it is for the bike to accelerate, while the more teeth the front chainring has, the easier it is for the bike to climb hills. For example, the SRAM NX 11S (11-42T) on the Frey Evolve represents the smallest rear chainring with 11 teeth and the largest with 42 teeth.

 

Transmission brand:

The brand like Shimano and SRAM are common brands of transmission. Each brand's transmission system has its unique features and applicable scenarios, so you can choose according to your needs.

 

Chainring and chain:

Upgrading or replacing the chainring and chain can improve the efficiency and durability of the transmission system. Generally speaking, lightweight chainrings can reduce the weight of the bike and improve the riding experience, and increasing or decreasing the chain length will change the bike's gear ratio.

In addition, when choosing new chainrings, chains, or derailleurs, it is necessary to ensure that they are compatible with the electric bike components and also consider warranty issues. (BY THE WAY, except for the latest SRAM transmission, you can install all the SRAM transmission systems to our Frey Bikes.)

 

In general, the transmission system and brake system are one of the most important components of bikes. When choosing an electric bike, it's important to pay attention to the quality and performance of these two components.

Frey Bikes always uses high-quality transmission and brake components from major brands such as Shimano and SRAM, ensuring a safe foundation for any form of riding while also ensuring comfort and balance. We hope this article can help users make more informed choices when upgrading or purchasing an electric bike.

 

FREY EX-FAT ON SALE NOW!

Again, We sincerely hope you can Free Ride & Enjoy Yourself!