Size Guide
Description
Specifications
Geometry
Size Guide
Assembly
FLAT BAR GRAVEL REDEFINED
The DSX is the entry-level all-rounder in Marin’s flat bar gravel range—ideal for riders who want one bike for commutes, fitness rides, and weekend exploration. It delivers confident handling, reliable gearing, and a fast-rolling 700c setup—without the higher price of carbon and high-end drivetrains. Whether you're starting your gravel journey or just want a solid everyday machine, this is it.
LIGHTWEIGHT FRAMESET
At the heart of the DSX is a Series 2 6061 aluminium frame with modern gravel geometry, internal cable routing, and clearance for up to 45mm tyres. It’s matched with a tough CrMo steel fork that offers ride-smoothing compliance and practical mounts for racks and fenders—making it equally ready for paved paths or rough backroads.
MARIN QUALITY
Marin has been designing bikes for the everyday explorer for decades, and the DSX Base carries that DNA. With integrated disc brakes, rack and fender mounts, and a build that balances durability and performance, it’s made to go the distance—whether you're riding to work or chasing the weekend.
MICROSHIFT ADVENT 1X9 DRIVETRAIN
Designed for riders who want reliable shifting without complexity, MicroSHIFT’s Advent 9-speed drivetrain pairs a clutch-equipped rear derailleur with a wide 11–46T cassette. It offers smooth, stable gear changes and enough range for climbs, commutes, and gravel detours alike.
TEKTRO HDM275 HYDRAULIC BRAKES
With consistent power and a compact design, Tektro’s HDM275 brakes bring true hydraulic performance to entry-level bikes. They offer confident stopping in all conditions and a light lever feel that keeps you in control on descents or in traffic.
WTB RIDDLER 700X45MM TYRES
Fast and efficient on tarmac with the grip to hold lines on loose gravel, WTB’s Riddlers are the ideal all-rounders. Their 45mm width gives you a stable, comfortable ride whether you're on smooth bike paths or unpaved backroads.
We reserve the right to modify product specifications and details without prior notification.
Length measurements are provided in millimeters and degrees, unless specified otherwise.
If you are outside of the size range or unsure of the best fit, give us a call and we'll help get you on the right bike.
| Size | Age | Range (cm) | Range (ft & in) |
|---|---|---|---|
| 12" (Balance) | 2 - 4 | 80 - 100 | 2'6" - 3'1" |
| 16" | 4 - 7 | 100 - 120 | 3'4" - 4'0" |
| 20" | 7 - 9 | 120 - 135 | 4'0" - 4'5" |
| 24" | 9 - 11 | 135 - 145 | 4'5" - 4'9" |
If you are outside of the size range or unsure of the right fit for you, give us a call or come in and visit your local store to talk about your best options.
Explore our series of how-to video guides designed to walk you through every stage of assembling and fine-tuning your new Marin DSX - Flat Bar Gravel Bike. Whether you watch the entire series or focus on specific tasks, we've got you covered. Our dedicated Customer Service team is here to offer expert advice and ensure your bike is ready for the road.
Planning to assemble at home? Remember to install the pedals with care. Make sure to align them square and gently tighten to avoid stripping the threads.
Description
FLAT BAR GRAVEL REDEFINED
The DSX is the entry-level all-rounder in Marin’s flat bar gravel range—ideal for riders who want one bike for commutes, fitness rides, and weekend exploration. It delivers confident handling, reliable gearing, and a fast-rolling 700c setup—without the higher price of carbon and high-end drivetrains. Whether you're starting your gravel journey or just want a solid everyday machine, this is it.
LIGHTWEIGHT FRAMESET
At the heart of the DSX is a Series 2 6061 aluminium frame with modern gravel geometry, internal cable routing, and clearance for up to 45mm tyres. It’s matched with a tough CrMo steel fork that offers ride-smoothing compliance and practical mounts for racks and fenders—making it equally ready for paved paths or rough backroads.
MARIN QUALITY
Marin has been designing bikes for the everyday explorer for decades, and the DSX Base carries that DNA. With integrated disc brakes, rack and fender mounts, and a build that balances durability and performance, it’s made to go the distance—whether you're riding to work or chasing the weekend.
MICROSHIFT ADVENT 1X9 DRIVETRAIN
Designed for riders who want reliable shifting without complexity, MicroSHIFT’s Advent 9-speed drivetrain pairs a clutch-equipped rear derailleur with a wide 11–46T cassette. It offers smooth, stable gear changes and enough range for climbs, commutes, and gravel detours alike.
TEKTRO HDM275 HYDRAULIC BRAKES
With consistent power and a compact design, Tektro’s HDM275 brakes bring true hydraulic performance to entry-level bikes. They offer confident stopping in all conditions and a light lever feel that keeps you in control on descents or in traffic.
WTB RIDDLER 700X45MM TYRES
Fast and efficient on tarmac with the grip to hold lines on loose gravel, WTB’s Riddlers are the ideal all-rounders. Their 45mm width gives you a stable, comfortable ride whether you're on smooth bike paths or unpaved backroads.
Specifications
We reserve the right to modify product specifications and details without prior notification.
Geometry
Length measurements are provided in millimeters and degrees, unless specified otherwise.
Size Guide
If you are outside of the size range or unsure of the best fit, give us a call and we'll help get you on the right bike.
Assembly
Explore our series of how-to video guides designed to walk you through every stage of assembling and fine-tuning your new Marin DSX - Flat Bar Gravel Bike. Whether you watch the entire series or focus on specific tasks, we've got you covered. Our dedicated Customer Service team is here to offer expert advice and ensure your bike is ready for the road.
Planning to assemble at home? Remember to install the pedals with care. Make sure to align them square and gently tighten to avoid stripping the threads.
Our Marin DSX - Flat Bar Gravel Bike includes the industry-leading Reid Warranty: lifetime on frame/rigid forks and 2 years on non-consumable parts. Shop online to enjoy a 30 Day Test Ride to guarantee you get a great deal.
Home Delivery
Our bikes are shipped in a box 85% assembled and require basic assembly, like turning handlebars and inserting pedals. Check out our Assembly Videos that give instructions on how to do this.
Buy One, Plant One
Since January 2020 we have worked with not-for-profit reforestation partners to donate enough money to pay a local person a fair wage to grow, plant and guard to maturity 1 native tree for every bike we sell.
We've now planted more than 400,000 trees and counting!