2026 Marlin Gen 3 Hardtail Mountain Frameset
Fully assembled, tuned, and test-ridden—ready to ride at pickup from any DFW Bike Mart location.
Expected to ship within 3 days
Professionally built and test-ridden before it ships. Arrives mostly assembled with just minimal setup needed. See Reassembly Instructions
Delivered fully assembled and tuned by Bike Mart—ready to ride right at your doorstep within 10 miles of any DFW location.
Ship
Get your bike or equipment delivered to your home directly from Bike Mart via our FedEx or USPS Carrier partners. Adult signature is required for all bike deliveries and for equipment & gear deliveries over $500.
For orders that include a bike, it will be professionally pre-built and shipped to your home with minimal assembly needed. While we try to make it as easy as possible, basic mechanical skills and proper tools are required. For orders that include a frameset please visit our support center to make sure you have the specialty tools and skills required.
If you decide to take your bike to a local retailer for assembly, additional fees will apply.
Pickup
We’ve made it easier than ever to get the gear and bikes you love—fast. With our Buy Online, Pick Up In Store (BOPIS) option, you can shop online and pick up your items at your convenience from any of our six DFW locations.
The best part about picking up at a Bike Mart location is that you get the same high quality service with the convenience of having the exact bike or part.
Bikes / Car Racks will be assembled and installed at no extra charge
Delivery
When you select "Home Delivery" at checkout. Your bike will be professionally assembled and the closest Bike Mart store will call you to schedule the delivery.
We offer home delivery for bike purchases only within 10 miles of a Bike Mart location. Contact us if you live beyond 10 miles and we can discuss more options. Additional fees may apply.
In stock bikes will be delivered within 7 days. Warehouse bikes will delivered within 14 days*.
2026 Marlin Gen 3 Hardtail Mountain Frameset
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Expanded size range
With 8 different sizes, Marlin has a bike made to fit every rider. Each frame is equipped with smart wheel sizing, with XXS frames rolling on 26" wheels, and wheel sizes increasing proportionally along with frame sizes, so every rider gets the fit they need.
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Trail-ready, Upgrade-ready
The secret to Marlin's popularity is a real trail-savvy mountain bike frame that's upgrade compatible, so it can grow with you as you take on bigger trails and tougher features.
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Roll stronger with Thru Skew
Goodbye open dropouts. The Thru Skewer is a better, stronger, more precisely aligned rear wheel retention system that keeps your wheel more secure than quick-release skewers while still using the standard 135mm rear hub spacing.
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A better way to produce aluminum
Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.
Overview
Overview
Technical Specifications
Technical Specifications
| *frame | Size: XXS , XS Alpha Silver Aluminum, curved top tube, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkewSize: S , M , ML , L , XL , XXL Alpha Silver Aluminum, internal derailleur & dropper post routing, rack and kickstand mount, 135x5mm ThruSkew |
| Skewer rear | 173x5mm QR |
| Max tire size | Frame: 29x2.40\ (XXS: 26x2.40\, XS & S: 27.5x2.40\), Fork: See manufacturer |
| Max chainring size | 1x: See FAQ, 2x: 36T, 3x: 42T |
| Headset | Semi-integrated, 1-1/8'' |
| Rotor size | Max brake rotor sizes - Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer |
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
Parts are subject to change without notice. Chat with us if you have any questions.
Geometry
Geometry
All measurements provided in cm unless otherwise noted.
| Frame size number | 13.5" | 14.5" | 15.5" | 19.5" | 21.5" | 21.5" | 23" | 23" |
| Frame size letter | XXS | XS | S | L | XL | XL | XXL | XXL |
| Wheel size | 26" | 27.5" | 27.5" | 29" | 29" | 29" | 29" | 29" |
| A — Seat tube | 32.0 | 34.0 | 37.0 | 47.0 | 52.1 | 50.0 | 55.9 | 54.0 |
| B — Seat tube angle (degrees) | 74.0° | 73.8° | 73.8° | 71.9° | 71.9° | 73.4° | 71.9° | 73.4° |
| Effective seat tube angle (degrees) | 74.0° | 74.0° | 74.0° | 73.0° | 73.0° | 74.0° | 73.0° | 74.0° |
| C — Head tube length | 9.0 | 9.0 | 10.0 | 10.0 | 12.0 | 13.5 | 12.0 | 15.0 |
| D — Head angle (degrees) | 66.5° | 66.5° | 66.5° | 69.5° | 69.5° | 66.5° | 69.5° | 66.5° |
| E — Effective top tube | 52.1 | 55.1 | 57.9 | 63.8 | 65.9 | 67.8 | 67.3 | 70.7 |
| F — Bottom bracket height | 30.2 | 31.3 | 31.3 | 31.0 | 31.0 | 30.8 | 31.1 | 30.8 |
| G — Bottom bracket drop | 3.8 | 4.5 | 4.5 | 5.8 | 5.8 | 6.0 | 5.8 | 6.0 |
| H — Chainstay length | 43.3 | 43.3 | 43.3 | 43.8 | 43.8 | 43.8 | 43.8 | 43.8 |
| I — Offset | 4.0 | 4.2 | 4.2 | 4.2 | 4.2 | 4.6 | 4.2 | 4.6 |
| J — Trail | 10.4 | 11.0 | 11.0 | 9.3 | 9.3 | 11.0 | 9.3 | 11.0 |
| K — Wheelbase | 106.0 | 109.2 | 112.1 | 113.7 | 115.9 | 123.0 | 117.3 | 126.1 |
| L — Standover | 65.0 | 65.8 | 69.2 | 75.7 | 76.9 | 79.1 | 80.4 | 81.6 |
| M — Frame reach | 36.5 | 39.0 | 41.5 | 45.1 | 46.6 | 49.5 | 48.0 | 52.0 |
| N — Frame stack | 54.4 | 56.3 | 57.2 | 61.1 | 63.0 | 63.7 | 63.0 | 65.1 |
This Geometry Chart is provided by the Manufactuer. Chat with us if you have any questions.
Sizing
Sizing
| size | inches | cm |
|---|---|---|
| 2XS | 4'5" - 4'9" | 135 - 145 |
| XS | 4'9" - 5'1" | 145 - 155 |
| S | 5'1" - 5'5" | 155 - 165 |
| M | 5'5" - 5'10" | 165 - 177 |
| ML | 5'8" - 5'11" | 173 - 180 |
| L | 5'10" - 6'2" | 177 - 188 |
| XL | 6'2" - 6'5" | 188 - 195 |
| 2XL | 6'5" - 6'8" | 195 - 203 |
Sizing to be used as a reference only. Chat with us if you have any questions.
