# I Rode The Largest Mountain Bike In The World (36” Wheels!)

Source: https://www.youtube.com/watch?v=MbH7tlE3JL8
Recap page: https://rapidrecap.app/video/MbH7tlE3JL8
Generated: 2025-07-15T06:32:00.77+00:00

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## Quick Overview

The DirtySixer AllRoad Mark II, featuring massive 36-inch wheels, is the world's largest mountain bike, designed for riders up to 7 feet 5 inches tall. It offers impressive roll-over capabilities on various terrains due to its large wheels and custom-scaled components, providing a uniquely tailored riding experience for exceptionally tall individuals.

**Key Points:**
- The DirtySixer AllRoad Mark II is the world's largest mountain bike, featuring 36-inch wheels and scaled-up components for riders up to 7'5" (2.3 meters) tall.
- The bike's large wheels provide superior roll-over capabilities, making obstacles like rocks feel like 'speed bumps' and maintaining momentum effectively.
- Components like grips, pedals, and brake levers are custom-made and massive, designed for large hands and feet, and the front wheel features dual 203mm brake rotors for immense stopping power.
- A 5'4" rider found the bike challenging to ride normally, requiring a shorter seat post and struggling with the oversized controls, leading to a crash.
- A 6'5" rider, despite being on a slightly smaller XL frame, easily navigated technical, wet terrain, demonstrating the bike's intended performance for tall individuals.
- The DirtySixer brand was founded by a 6'6" cyclist to address the lack of properly scaled bikes for very tall people, building custom bikes for NBA players like Shaquille O'Neal.
- The bike weighs just over 30 pounds (14 kg) for the XL size and costs $3,000, reflecting the custom manufacturing and specialized parts required for its unique design.

![Screenshot at 00:00: Reviewer Seth standing next to the DirtySixer bike, emphasizing its large size with outstretched hands](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-00-00.png)

**Context:** Seth, a 5'4" cyclist from Berm Peak, tests the DirtySixer AllRoad Mark II, a mountain bike specifically designed for exceptionally tall riders up to 7'5". Seth's personal experience as a short adult, who often needs clothing and even vehicle pedals altered to fit, provides a unique perspective on the challenges tall individuals face with standard-sized products. The video explores whether this purpose-built large bike truly solves the fit and performance issues for its intended audience, contrasting Seth's experience with that of a 6'5" friend, Manglar.

## Detailed Analysis

The DirtySixer AllRoad Mark II is the world's largest mountain bike, built with 36-inch wheels and scaled-up components like massive grips, brake levers, pedals, and a seat, designed to accommodate riders up to 7 feet 5 inches (2.3 meters) tall. It features two giant front brake rotors for enhanced stopping power, double-walled 36-inch rims with 36 14-gauge spokes, and custom hubs, including a front hub with dual 6-bolt rotor mounts. The bike also boasts a thicker-than-average bottom bracket shell and a 30mm steel crank axle, with crank arms up to 200mm on larger sizes. Weighing just over 30 pounds (14 kg) for the XL size, it is impressively light given its robust build. The bike is priced at $3,000, reflecting the investment in custom and hard-to-source parts. While a 5'4" rider found it challenging to ride normally, requiring a shorter seat post and struggling with the large grips and pedals, a 6'5" rider experienced its full potential, easily navigating technical terrain and maintaining momentum over obstacles despite the lack of suspension and minimal tire tread. The DirtySixer brand, founded by 6'6" cyclist David Folch, aims to provide properly scaled bikes for tall individuals, including NBA players like Shaquille O'Neal, and has expanded to offer 32-inch wheeled bikes, gravel bikes, and e-bikes. The bike's design is not an adaptation but a complete scale-up, offering a noble solution for those who struggle with standard-sized vehicles and equipment.

### Bike Design & Components

- Features massive 36-inch wheels and scaled-up components including grips, brake levers, pedals, and a seat
- Utilizes two giant front brake rotors for superior stopping power
- Incorporates custom double-walled 36-inch rims, 36 14-gauge spokes, and unique hubs, with the front hub featuring dual 6-bolt rotor mounts
- Built with a thicker-than-average bottom bracket shell and a 30mm steel crank axle, with crank arms extending up to 200mm on larger sizes.

### Riding Experience for Different Heights

- A 5'4" rider found the bike challenging, requiring a shorter seat post and struggling to reach pedals and operate oversized controls, leading to a crash
- A 6'5" rider, though on an XL frame designed for shorter individuals, demonstrated the bike's impressive capability, easily navigating technical terrain and maintaining momentum over obstacles
- The bike's large wheels allow it to roll over obstacles more effectively, turning large rocks into 'speed bumps' and maintaining momentum on various surfaces.

### Performance & Limitations

- Classified as an 'AllRoad' bike, suitable for roads, dirt paths, and light singletrack, but performs surprisingly well on more technical mountain bike trails
- The lack of suspension and aggressive tire knobs limits performance on steep or cambered terrain, but the large wheels compensate significantly
- The bike's long chainstay makes lifting the front wheel challenging for smaller riders, but experienced tall riders can adapt and perform drops without issue
- The dual hydraulic brake system provides excellent stopping power, crucial for managing the bike's size and potential rider weight.

### Brand Philosophy & History

- DirtySixer was founded in 2013 by David Folch, a 6'6" cyclist frustrated by ill-fitting bikes designed as afterthoughts for tall people
- The brand's mission is to scale up normal bikes completely, rather than adapting existing designs, to provide a proper fit for very tall individuals
- DirtySixer initially built custom batches for NBA players like Shaquille O'Neal and has since expanded its offerings to include 32-inch wheeled bikes, gravel bikes, and e-bikes, all with the same attention to scaled design.

### Practicality & Cost

- The XL DirtySixer weighs just over 30 pounds (14 kg), making it impressively light for its size
- Transporting the bike often requires a pickup truck, and it barely fits on standard stand-up racks, sometimes necessitating tire deflation
- Priced at $3,000, the bike's cost is justified by the extensive custom manufacturing and specialized components required for its unique scale and robust design.

![Screenshot at 00:00: Reviewer Seth standing next to the DirtySixer bike, emphasizing its large size with outstretched hands](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-00-00.png)
![Screenshot at 00:06: Two riders with their bikes on a misty mountain top, showing the DirtySixer next to a standard mountain bike for scale](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-00-06.png)
![Screenshot at 00:14: Close-up of the DirtySixer's oversized pedal with 'DIRTYSIXER' branding](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-00-14.png)
![Screenshot at 00:17: Close-up of the DirtySixer's front wheel showing dual brake rotors and calipers](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-00-17.png)
![Screenshot at 00:45: Reviewer Seth demonstrating the need for a shorter seat post by holding a standard one next to the bike's slammed seat](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-00-45.png)
![Screenshot at 01:15: Close-up of wooden blocks on vehicle pedals, illustrating the reviewer's need for adaptations due to his height](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-01-15.png)
![Screenshot at 01:55: The DirtySixer bike standing alone, appearing proportionally normal despite its large size due to scaled design](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-01-55.png)
![Screenshot at 02:08: Screenshot of the DirtySixer website showing available sizes up to 5XL and the price of $2,999.00](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-02-08.png)
![Screenshot at 02:54: Close-up of the 'NIMBUS NIGHTRIDER' tire, highlighting its unique brand and size for 36-inch wheels](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-02-54.png)
![Screenshot at 04:29: Reviewer Seth comparing the DirtySixer's oversized pedal to a normal-sized green pedal](https://ss.rapidrecap.app/screens/MbH7tlE3JL8/00-04-29.png)