AVASTA Earth 26/27.5 inch
AVASTA Earth Mountain Bike User Manual
Model: Earth 26/27.5 inch | Brand: AVASTA
1. Introducción
This manual provides essential information for the safe and efficient operation, assembly, and maintenance of your AVASTA Earth Mountain Bike. Please read this manual thoroughly before your first ride and retain it for future reference. Your AVASTA Earth Mountain Bike is designed for mountain biking and general recreational use, featuring a durable aluminum frame, 21-speed derailleur system, and dual disc brakes.

Imagen: Completa view of the AVASTA Earth Mountain Bike, showcasing its blue and black frame, wheels, and components.
2. Información de seguridad
Always wear a helmet when riding. Ensure all components are properly assembled and tightened before each ride. Regularly inspect tires for proper inflation and wear. Be aware of your surroundings and obey all traffic laws. Avoid riding in adverse weather conditions or on excessively challenging terrain if you are not experienced.
- Uso del casco: Utilice siempre un casco de bicicleta homologado.
- Comprobación previa al viaje: Inspect brakes, tires, and quick releases before every ride.
- Visibilidad: Use lights and reflectors, especially during low light conditions.
- Leyes de tráfico: Adhere to all local traffic regulations and signs.
- Condiciones de conducción: Adjust your riding style to suit terrain and weather.
3. Componentes sobreview
Your AVASTA Earth Mountain Bike is equipped with high-quality components designed for performance and durability.
- Marco: Lightweight aluminum alloy frame.
- Horquilla: Switchable front suspension fork for varied terrain.
- Engranajes: 21-speed Shimano derailleur system (3-speed front, 7-speed rear).
- Frenos: Dual mechanical disc brakes for reliable stopping power.
- Ruedas: Aluminum alloy rims with quick-release front wheel.
- Llantas: Kenda 26''x1.95'' or 27.5''x1.95'' all-terrain tires.
- Sillín: Ergonomically designed comfortable saddle.

Imagen: Detallada view of the quick-release front wheel, comfortable saddle, and concealed brake lines, highlighting key features for rider comfort and convenience.

Image: Focus on the front suspension system, showing the switch knob for adjustment, the suspension fork, and the robust Kenda tire tread for all-terrain grip.
4. Configuración y montaje
Your AVASTA Earth Mountain Bike comes 75% pre-assembled. Follow these steps for final assembly. For a visual guide, please refer to the official installation video provided by AVASTA.
Video: Official AVASTA Earth Mountain Bike assembly guide. This video demonstrates the steps required to complete the bike's setup, including attaching the front wheel, handlebars, pedals, and adjusting the seat.
- Desembalaje: Retire con cuidado todos los componentes del embalaje.
- Instalación del manillar: Fije el manillar a la potencia, asegurándose de que esté centrado y bien apretado.
- Instalación de la rueda delantera: Install the front wheel using the quick-release mechanism. Ensure it is properly seated and the quick-release lever is fully closed.
- Instalación de pedales: Identifique los pedales izquierdo (L) y derecho (R). Enrósquelos en las bielas (el pedal izquierdo tiene rosca inversa). Apriételos firmemente.
- Tija de sillín y sillín: Inserte la tija del sillín en el cuadro y ajuste la altura para una conducción cómoda. Asegúrela con el cierre rápido o el perno.
- Brake and Gear Adjustment: Fine-tune brake and gear cables for optimal performance. Refer to the operating instructions for details.
- Inflado de neumáticos: Infle los neumáticos a la presión recomendada indicada en el costado del neumático.
5. Instrucciones de funcionamiento
Understanding how to properly operate your bike's features will enhance your riding experience.
5.1. Cambiar de marcha
Your bike features a 21-speed Shimano system. Use the shifters on the handlebars to change gears. The left shifter controls the front derailleur (3 speeds), and the right shifter controls the rear derailleur (7 speeds).
- Desviador delantero (palanca de cambios izquierda): Controls larger jumps in gear ratios, ideal for significant changes in incline.
- Desviador trasero (palanca de cambios derecha): Controls smaller, finer adjustments to gear ratios, suitable for maintaining cadence on varied terrain.

Imagen: Detallada view of the Shimano gear system, including front and rear derailleurs, the rear disc brake, and the handlebar-mounted shifters for effortless gear changes.
5.2. Frenado
The bike is equipped with dual mechanical disc brakes. The left lever controls the front brake, and the right lever controls the rear brake. Apply both brakes simultaneously for effective stopping.
5.3. Horquilla de suspensión
The front suspension fork can be adjusted to suit different terrains. Use the switch knob on the fork to lock or unlock the suspension. Lock the suspension for efficient pedaling on smooth surfaces, and unlock it for absorbing shocks on rough terrain.
6. Mantenimiento
Regular maintenance ensures the longevity and safe operation of your AVASTA Earth Mountain Bike.
- Limpieza: Clean your bike regularly with mild soap and water. Avoid high-pressure washers on bearings.
- Lubricación: Lubricate the chain regularly, especially after riding in wet conditions. Apply a suitable bicycle chain lubricant.
- Presión de los neumáticos: Check tire pressure before each ride. Maintain pressure within the range indicated on the tire sidewall.
- Inspección de frenos: Check brake pads for wear and replace them when necessary. Ensure brake levers feel firm.
- Apriete del perno: Periodically check and tighten all bolts and quick releases, especially on the handlebars, stem, seat post, and wheels.
7. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| Los cambios de marcha no son suaves | Cable tension incorrect, dirty derailleur, bent hanger | Adjust cable tension, clean derailleur, check for bent hanger |
| Los frenos se sienten esponjosos o débiles | Loose cable, worn pads, contaminated rotor | Tighten cable, replace pads, clean rotor with disc brake cleaner |
| Los neumáticos pierden aire rápidamente | Puncture, valve issue, improper seating | Inspect for punctures, check valve, re-seat tire bead |
8. Especificaciones
| Característica | Detalle |
|---|---|
| Tipo de bicicleta | Bicicleta de montaña |
| Rango de edad | Adulto |
| Marca | AVASTA |
| Número de velocidades | 21 |
| Tamaño de la rueda | 26 Inches or 27.5 Inches (Optional) |
| Material del marco | Aluminio |
| Tipo de suspensión | Frente |
| Estilo de freno | Desct |
| Componentes incluidos | Bell, Reflectors, Tool Kit |
| Requiere ensamblaje | Sí (75% premontado) |
9. Garantía y soporte
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official AVASTA webSitio. Conserve su comprobante de compra para reclamaciones de garantía.
AVASTA Store Link: Visit the AVASTA Store on Amazon
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