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Description
e bike mtb fully 2021 Velowave Forest SM MTB Electric BikeVelowave Forest SM MTB Full Suspension Mountain Electric Bike Whether you're exploring challenging trails or commuting through the city, the Forest electric bike combines state of the art technology with rugged durability to elevate every ride. The 500W motor delivers robust performance, with a peak output of 760W and 130Nm of torque, ensuring smooth acceleration and excellent climbing ability. Enjoy a comfortable ride with the adjustable front and
Velowave Forest SM MTB Full Suspension Mountain Electric Bike
Whether you're exploring challenging trails or commuting through the city, the Forest electric bike combines state-of-the-art technology with rugged durability to elevate every ride. The 500W motor delivers robust performance, with a peak output of 760W and 130Nm of torque, ensuring smooth acceleration and excellent climbing ability. Enjoy a comfortable ride with the adjustable front and rear air suspension, which adapts to varying terrains and rider preferences.
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Classes:
Class 3(Ebikes can go up to 28mph with pedal assistance)
Max Speed:
Up to 28 MPH on Pedal Assist; 20 MPH on Throttle
Range:
Up to 70 Miles* on PAS, 40 Miles* on Throttle (Range Per Charge is measured under the conditions that power is sufficient, with a 75kg load, at 86°F(30°C), 70% humidity, on a level road, in pedal assist mode with level 1 assistance, and in pure electric riding mode by throttle. Actual results may vary based on differences in temperature, load, wind speed, road conditions and other factors.)
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Frame:
6061 Aluminum Alloy with Internal Battery, with Front and Rear Suspension, Frame Travel 121 mm
Fork:
Air Suspension Fork with 140mm travel, with lockout
Rear Suspension:
185X45 air suspension with 42mm travel, with external rebound adjustment
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Rim:
Aluminum 27.5" 36H Front & Rear
Front Wheel Spokes:
Black Stainless 13G x 269/270 mm, Front and Rear
Hubs:
Disc Nutted Front / Rear Axles
Tire:
Kenda 27.5" x 2.8"
Tire Size:
27.5" x 2.8"
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Battery:
Removable Internal Lithium-ion Battery 48V 15Ah (720Wh) with LG cells
Charger:
48V 3 Amp Charger, Approx. 5 Hour Charging
Motor:
500W （Peak 760W），130Nm
Display:
TFT Smart Easy Read Display with Backlight, Colorful screen
Pedal Assist:
6 Levels
Sensor:
Torque Sensor
Throttle:
Throttle on demand - Throttle from a complete stop
Light:
Front 48V LED Light 80 LUX; Rear Blinking Light
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Shifter:
Shimano 10-Speed Thumb Shift
Pedal Assist:
6 Levels
Crankset:
170mm w/ 38 T
Freewheel:
Shimano 11-42T, 10-Speed CASSETTE
Pedals:
Alloy Platform
Chain:
KMC 122 Link, 10-Speed
Rear Derailleur:
Shimano Deore RD-M4120 10-Speed
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Saddle:
Comfortable Saddle
Seatpost:
Forged Alloy, φ31.6x300mm
Seat Clamp:
φ35mm Quick Release
Stem:
Bar bore: Ø31.8mm, Clamp I.D.: Ø28.6mm, HEIGHT: 60mm, RISE: 6°
Handlebar:
Aluminum 31.8mm, Width 740mm
Headset:
Sealed Bearing Headset
Grips:
Ergonomic Comfort
Brakes:
Tektro Hydraulic Disc Brakes w/180mm discs, w/ power-cut-off function
Kickstand:
Included, Rear Mount
Fenders:
Not Included
Rear Rack:
Not Included
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Net Weight:
64 lbs / 29.2 kg
Gross Weight:
91 lbs / 41.2 kg
Battery Weight:
8.7 lbs / 3.95 kg
Max Load Capacity:
385 lbs / 175 kg (including cargo)
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Product Size:
2035 x 1110 x 745 mm
Packing Size:
1700 x 300 x 830 mm
- Warranty: 2 Year
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.6 ★★★★★
Based on 685 reviews
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Product Reviews
★★★★★ 5
A Hands-On and Deep Guide to Linux Kernel Programming
Format: Paperback
Linux Kernel Programming, Second Edition is a very practical and well-structured book for anyone who wants to understand how the Linux kernel works. It focuses on both theory and real hands-on learning. The book uses a clear style and explains complex topics in a simple way. It is designed to help readers build real skills, not just read concepts. It is especially useful for developers who want to work closer to the operating system.
One of the most interesting parts of the book is the strong introduction to kernel programming. It explains how to set up a development environment, build the Linux kernel from source, and write the first kernel module. This section gives readers a solid starting point and builds confidence early in the learning process. It also explains why loadable kernel modules are widely used in real-world projects.
Another highlight is the deep coverage of kernel internals. The book explains core concepts such as kernel architecture, processes, threads, and the difference between user mode and kernel mode. These ideas are often hard to understand, but the book presents them in a clear and structured way. This helps readers see how the operating system really works under the surface.
The memory management section is especially strong and detailed. The book spends several chapters explaining how memory is allocated and managed inside the kernel. It also explains advanced topics such as page allocation, memory reclaim, and the out-of-memory system. These chapters are very useful for understanding performance and stability in real systems.
Another very interesting section is the coverage of CPU scheduling. The book explains how the Linux kernel decides which task runs at a given time. It introduces scheduling policies, priorities, and modern features like control groups. The explanations are practical and supported by examples, which makes the topic easier to follow.
The chapters on kernel synchronization are also a major highlight. They explain concepts such as locks, atomic operations, and deadlock prevention. These topics are critical for writing safe and reliable kernel code. The book also shows real examples and common mistakes, which helps readers avoid problems in their own work.
Another strength of the book is its hands-on approach. It includes many kernel modules, scripts, and examples that readers can try themselves. This makes learning more engaging and helps turn theory into real skills. The focus on practical work makes the book stand out from more theoretical resources.
Overall, this book is a great choice for developers, system programmers, and engineers who want to understand the Linux kernel in depth. It starts with the basics and moves into advanced topics in a smooth way. The combination of clear explanations and practical examples makes it a strong and valuable learning resource.
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Reviewed in the United States on April 16, 2026
★★★★★ 4
Poor quality binding
Format: Paperback, Format: Paperback
Binding glue fell apart in less than a week and the pages fell out. Content is great though and I have a shiny new kernel based on Kali. 4 stars despite the binding because the content is top tier if you love all things Linux 🤌
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Reviewed in the United States on July 4, 2025
★★★★★ 5
An Essential Guide for Mastering Linux Kernel Development
Format: Paperback, Format: Paperback
Linux Kernel Programming - Second Edition: A Comprehensive and Practical Guide to Kernel Internals, Writing Modules, and Kernel Synchronization is an outstanding resource for anyone eager to understand the inner workings of the Linux kernel. Whether you're a beginner looking to get started or an experienced developer aiming to deepen your knowledge, this book delivers a well-structured and hands-on approach to kernel programming.
The book starts with the fundamentals—setting up a kernel development environment, understanding kernel release nomenclature, and compiling the 6.x Linux kernel from source. As you progress, it dives into advanced topics such as kernel configuration, writing and debugging loadable kernel modules (LKMs), kernel synchronization mechanisms, memory management, CPU scheduling, and much more. Each chapter builds on practical examples, ensuring that readers not only understand the theory but also learn how to apply it in real-world scenarios.
One of the book's biggest strengths is its focus on practical application. From exploring the kernel build process and bootloader configurations to working with Git for kernel development and troubleshooting system crashes using debugging tools, the book provides step-by-step guidance. The coverage of kernel synchronization techniques—including spinlocks, mutexes, and RCU—makes it an invaluable reference for those dealing with concurrent programming in the kernel space.
Whether you're an aspiring kernel developer, a DevOps engineer, or a systems programmer, this book is a must-have. The clear explanations, well-structured content, and hands-on exercises make it a perfect companion for anyone wanting to go from a beginner to an expert in Linux kernel programming.
Highly recommended for anyone serious about understanding and working with the Linux kernel!
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Reviewed in the United States on January 29, 2025
★★★★★ 5
Broad, detailed and comprehensible book on Linux Kernel Programming
Format: Paperback, Format: Paperback
I got on my desk a copy of "Linux Kernel Programmin (2E)" by Kaiwan N. Billimoria
and will shortly mention what this book is about.
It is a book that you can read cover-to-cover to have a better understanding of kernel development,
but I see also how it can be used as a reference when you are going to throw C code at your compiler
and build a linux kernel.
There is a number of scenario why you might want to do that:
- You are recompiling the kernel for a new machine that needs better support
- You are going to implement a kernel module and you need some context
- You are going to work on the kernel yourself
While all of those use-cases for the book are technically a fit, apart from gaining some
higher understanding I see the most out of it if you are going to code on the kernel itself.
There you have everything that is needed. You can go back and forth between your code
and the book, and still learn by doing.
What mostly impressed me is the breath of the topics: the chapter about writing
a config file for the kernel enlists a total of seven (7!) different strategies
to get started with a configuration file for your kernel.
Also a lot of side tools are mentioned to help out with kernel development and
debugging.
Quite some module development can be in theory done without fully understanding
the details of the kernel itself, but the deeper you reach, the more you will
need the details that are well discussed in the book.
Memory allocation, CPU scheduling algorithms, the book does not try to save
words and describe in detail and plain language most things there is to know,
not sparing plenty of references to other books and articles.
Also, the material is up-to-date with the latest kernel.
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Reviewed in the United States on March 8, 2024
★★★★★ 5
For begginers and also experienced kernel developers!
Format: Paperback
There are a few aspects about the book that I really like. One is that every chapter provides a very detailed and immersive look into a specific part of kernel development. Another interesting aspect about the book is that it is based on a very recent kernel version (6.1), which is also an LTS version that will be maintained for a few years. I am not aware of any other book about the Linux kernel based on such a recent version.
The first 3 chapters of the book explains how to configure and build the Linux kernel (both natively for x86_64 and cross-compiling for AArch64). After that, chapters 4 and 5 explains all you need to know about how to write kernel modules. And starting from chapter 6, the book introduces different aspects of kernel programming in very detail, from the scheduler to memory management and synchronization. Get ready, because it is indeed a big book, with more than 800+ pages!
I really think the book targets both beginners and experts. For beginners, it will be a deep dive into major kernel programming concepts (make sure you follow along the exercises proposed by the author). For experienced kernel developers, the book is really a refresher. Though I work with the Linux kernel for 15+ years, I can still learn a lot by reading the book. An old dog can always learn new tricks, right?
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Reviewed in the United States on May 30, 2024