2026 Top Fuel AL Gen 4 Full Suspension Mountain Frameset
Every bike is fully assembled, tuned, and test-ridden before pickup at your chosen 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.
Complete your Ride
What is the Bike Mart Return policy?
What is the Bike Mart Return policy?
Bike Mart offers a 14-day return and 30-day exchange policy in effect on qualifying items. Restocking fee may apply for "At Warehouse" Items. Read More
What Financing options does Bike Mart offer?
What Financing options does Bike Mart offer?
Financing is easier than ever at Bike Mart. With Synchrony Financial, you can choose:
- 0% APR for 6 months — on orders under $999
- 0% APR for 12 months — on orders of $1,000 or more
We also support HSA/FSA Funds with TrueMed, Shop Pay Installments and PayPal Financing.
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.
If you decide to take your bike to a local bike shop 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 and might require additional processing time for assembly.
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*.
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Make Top Fuel yours
Opt for light parts and a 120mm fork for a featherweight Top Fuel, or a 140mm fork and longer-stroke 130mm rear shock for extra versatility. Room for a longer dropper and MX wheels lets you customize Top Fuel into an ultimate playful trail whip.
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4-way Mino Link
Easily adjust the suspension and geometry four different ways for where and how you ride. With the flip of a chip, you can ride with more or less progressive suspension, and tweak your geometry for a slacker head tube and lower BB or steeper head tube and higher BB.
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New internal storage with new BITS bags
New internal frame storage bags make it easy to ditch the pack and still carry your ride essentials.
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Active Braking Pivot
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.
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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 | Alpha Platinum Aluminum, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel |
| Shock | Fox Performance Float DPS, 2-position damper, 185mm x 50mm |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| Max tire size | Frame: 29x2.50", Fork: See manufacturer |
| Max chainring size | 1x: 34T, min 30T |
| Rotor size | Max brake rotor sizes - Frame: 200mm, min 180mm |
| Bag | Bontrager BITS Internal Frame Storage Bag |
| Weight | M - 3.70 kg / 8.16 lbs |
| 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 letter | S | S | M | M | ML | ML | L | L | XL | XL |
| Geometry position | High | Low | High | Low | High | Low | High | Low | High | Low |
| Wheel size | 27.5" | 27.5" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" |
| A — Seat tube | 36.0 | 36.0 | 41.0 | 41.0 | 42.0 | 42.0 | 43.5 | 43.5 | 47.0 | 47.0 |
| B — Seat tube angle (degrees) | 69.5° | 69.0° | 70.5° | 70.0° | 70.5° | 70.0° | 70.5° | 70.0° | 70.5° | 70.0° |
| Effective seat tube angle (degrees) | 76.5° | 76.0° | 77.3° | 76.9° | 76.6° | 76.2° | 76.3° | 75.9° | 75.6° | 75.2° |
| C — Head tube length | 10.5 | 10.5 | 10.5 | 10.5 | 11.0 | 11.0 | 11.5 | 11.5 | 13.5 | 13.5 |
| D — Head angle (degrees) | 65.9° | 65.5° | 65.9° | 65.5° | 65.9° | 65.5° | 65.9° | 65.5° | 65.9° | 65.5° |
| E — Effective top tube | 55.8 | 55.9 | 58.7 | 58.8 | 61.1 | 61.2 | 63.0 | 63.1 | 67.2 | 67.3 |
| F — Bottom bracket height | 35.1 | 34.5 | 35.4 | 34.8 | 35.4 | 34.8 | 35.4 | 34.8 | 35.4 | 34.8 |
| G — Bottom bracket drop | 1.0 | 1.6 | 2.6 | 3.2 | 2.6 | 3.2 | 2.6 | 3.2 | 2.6 | 3.2 |
| H — Chainstay length | 43.4 | 43.5 | 43.4 | 43.5 | 43.9 | 44.0 | 43.9 | 44.0 | 44.4 | 44.5 |
| I — Offset | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
| J — Trail | 11.1 | 11.5 | 12.1 | 12.5 | 12.1 | 12.5 | 12.1 | 12.5 | 12.1 | 12.5 |
| K — Wheelbase | 115.0 | 115.1 | 118.8 | 118.8 | 121.0 | 121.0 | 122.7 | 122.7 | 127.0 | 127.1 |
| L — Standover | 70.5 | 70.0 | 75.5 | 75.0 | 75.5 | 75.0 | 76.0 | 75.5 | 76.5 | 76.0 |
| M — Frame reach | 42.2 | 41.7 | 45.2 | 44.7 | 46.7 | 46.2 | 48.2 | 47.7 | 51.2 | 50.7 |
| N — Frame stack | 56.6 | 57.0 | 59.9 | 60.3 | 60.4 | 60.7 | 60.8 | 61.2 | 62.6 | 63.0 |
This Geometry Chart is provided by the Manufactuer. Chat with us if you have any questions.
Sizing
Sizing
| size | inches | cm |
|---|---|---|
| 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 |
Sizing to be used as a reference only. Chat with us if you have any questions.
Why Shop at Bike Mart?
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Live Chat with Real People
Get instant advice and answers from our team of cycling experts through our online chat feature or over the phone.
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Community-Focused
We have donated over a million dollars to support our communities through charity rides, bike rallies and advocacy for more bikeable trails in Texas.
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Professional, Quality Assembly
Our bikes are expertly assembled and inspected by Bike Mart’s professionally trained staff. They ensure proper adjustments, tighten and true wheels, and get your bike ready to ride.
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Our Legacy of Excellence
With 62 years of retail experience, Bike Mart brings unparalleled expertise and dedication to serving you.
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10% off accessories with new bike purchase
Receive 10% off all accessories purchased with a new bike.
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Hassle-Free Returns
Easily initiate returns for online orders with our straightforward return policy to shop with confidence.
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Locally Owned & Operated
A family of cyclists who live and ride in your community—feel right at home.
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Free accessory installation with new bike purchase
Let our experts install your accessories at no extra cost, ensuring everything fits perfectly and is ready for your ride!
