ZTTO 11T MTB Bicycle Rear Derailleur Jockey Wheel Ceramic Bearing Pulley AL7075 CNC Road Bike Guide Roller Idler 4mm 5mm 6mm
Pulley screws Purple
KSh497.30
Sale price
KSh497.30
Regular price
KSh497.30
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ZTTO 11T MTB Bicycle Rear Derailleur Jockey Wheel Ceramic Bearing Pulley AL7075 CNC Road Bike Guide Roller Idler 4mm 5mm 6mm
KSh497.30
Sale price
KSh497.30
Regular price
KSh497.30
ZTTO 11T Ceramic Bearing Jockey Wheel – Ultra-Smooth Rear Derailleur Upgrade
Turn every pedal stroke into pure, efficient power. The ZTTO 11T MTB Bicycle Rear Derailleur Jockey Wheel is designed for riders who want a faster, smoother, and more responsive drivetrain – whether you’re racing on the road, attacking climbs on your MTB, or chasing seconds in a triathlon. With premium hybrid ceramic bearings, ultra-light AL7075 CNC aluminum, and smart engineering in every detail, this pulley wheel helps you ride further and faster with less effort.
🌟 Why You’ll Love It
- Effortless speed with ceramic bearings – Hybrid ceramic bearings dramatically reduce friction, especially in low load, high-speed conditions, so you accelerate quicker and maintain speed with less power.
- Ultra-lightweight performance – Weighing only about 7.8 g, the AL7075 CNC-machined pulley keeps your drivetrain light and responsive without sacrificing strength.
- Smoother, quieter shifting – Precision construction and optimized pulley design help your rear derailleur track the chain more accurately for crisp, reliable gear changes.
- Built for all disciplines – Perfect for road, MTB, and triathlon use, this pulley wheel is engineered to be the fastest-spinning bearing on your bike, making it one of the most effective upgrades per gram.
- Durable AL7075 aluminum body – High-grade aluminum alloy offers excellent stiffness and wear resistance, so your pulley stands up to hard riding and tough conditions.
- POM bearing rings for guide pulley – High-stiffness engineering thermoplastic provides low friction, high dimensional stability, and outstanding resistance to water and salty environments – no rust, no constant lubrication.
- Extended bearing life – Ceramic balls are much harder than steel, 60% lighter, and extremely wear resistant, giving you a longer-lasting, more efficient drivetrain.
- Low-maintenance design – Safe operation even with low lubricant levels reduces viscous drag and maintenance time, while the removable design makes cleaning and servicing easier.
- Wide compatibility – Fits 4/5/6 mm roller screw axis and is suitable for most rear derailleurs on the market, making it a simple, high-impact upgrade.
- Multiple color options – Available in Black, Red, Blue, Silver, Gold so you can match your bike’s style while boosting performance.
- Energy-saving upgrade – As one of the fastest spinning bearings on your bike, upgrading your pulley wheels is an efficient way to save watts, reduce fatigue, or ride faster at the same effort.
⚙️ Full Specs
| Product name | ZTTO 11T MTB Bicycle Rear Derailleur Jockey Wheel Ceramic Bearing Pulley AL7075 CNC Road Bike Guide Roller Idler 4mm 5mm 6mm |
| Type | Bicycle Rear Derailleur Ceramic bearing Pulley Jockey Wheel |
| Performance note | All the results of the simulations and the experimentations indicated that the ceramic ball bearings' performances are very good, especially in the low load and high-speed environment. |
| Size | 11T |
| Structure | Ceramic bearing |
| Material | aluminum alloy 7075 |
| Color options | Black Red Blue Silver Gold |
| Weight | about 7.8g |
| Compatibility |
Fit for 4/5/6 MM roller screw axis Apply for most of rear derailleur on the market |
| Application | Suitable for all cycling applications, whether it is road, MTB, or triathlon, these pulley wheels will optimize your speed rear derailleur with reduced friction and extended lifetime. Being the fastest spinning bearings on your bike, an upgrade with our high-performance pulley wheels are an effective way to save energy or ride faster. |
| Pulley wheels description | Weighing only astonishing 7.8g grams, these lightweight pulley wheels are fitted with hybrid ceramic bearings, which reduce friction and feature increased lifetime. The aluminum alloy is very durable, and together with the pulley design, the set optimizes the overall performance of your derailleur. The removable design also makes the maintenance much easier. |
| POM bearing rings | For guide pulley, we use POM bearing rings instead of steel bearing rings, POM is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional stability. They are also extremely light weight, that is why we can make a 7.8 grams pulley wheel. They are also resistant to water and salty environment and they will never need lubrication or getting rusty. |
| ZTTO Premium Hybrid Ceramic Bearings |
ZTTO bearings feature rolling balls made of a ceramic material. The rolling balls are constructed of silicon nitride or zirconia ceramics. Using ceramic bearings in hubs, bottom brackets, and pulleys will reduce friction. By reducing the coefficient of friction, you can accelerate faster and maintain speed with less power input. Benefits of ceramic bearings: Ceramic bearings have 10% less friction than steel bearings. Bearings are extremely wear resistant because ceramic material is much harder than the |