Sledgehammer Freestyle BMX Frame
The Sledgehammer was created to complement a riding style that is powerful and progressive. Built with the feedback and insight of Olympian and professional freestyle rider Nick Bruce and his protégé Huck Kurinsky, the Sledgehammer is fit to perform on the biggest stages of freestyle BMX.
- 100% 4130 Chromoly frame
- Transparent teal or transparent black paint over raw chromoly
- Offered in 18-inch (17.5” TT) and 20-inch (20.6” and 20.9” TT) frame sizes
- The seat tube is debossed with the Huffy Freestyle wordmark
- 6mm thick 14mm dropouts with integrated chain tensioners
- Includes brake mount hardware
- Tube set specifically designed by our engineers to eliminate gussets while still maintaining strength and minimizing overall weight
Designed in Dayton, Ohio
Designed in Dayton, Ohio
For over 130 years, Huffy has proudly called Dayton, Ohio, home. Huffy is part of the United Wheels Inc. family—a collection of respected bicycle brands including Buzz Ebikes, Batch Bicycles, and Niner Bikes.
With a rich cycling heritage and more than 200 million bicycles sold, Huffy stands as one of the most trusted names in bikes.
To learn more, visit our full About Us page.
Easy Returns
Easy Returns
Unused products purchased directly from Huffy.com may be returned within 30 days of the original purchase date, provided they are in their original packaging.
To initiate a return, simply contact our Customer Service team to obtain a Return Authorization Number and shipping instructions.
For full details, please visit our Shipping Policy Page.
Fast and Free Shipping
Fast and Free Shipping
Orders totaling $49 or more qualify for free standard shipping in the continental United States. For orders under $50, a flat shipping fee of $8.99 applies.
After your order, you should receive an order confirmation. Please allow 1–2 business days for processing. Once shipped, orders typically arrive within 3–4 business days.
For more information, visit our Shipping Policy Page
Free Warranty
Free Warranty
Huffy combines affordable products with a leading industry warranty. All steel frames offer a limited lifetime warranty, and aluminum frames offer a 10-year warranty.
Rigid steel forks also offer a lifetime warranty, while shock forks and aluminum ones offer a 1-year warranty.
All other components are warranted for six (6) months from the date of purchase.
For more details, visit our Warranty Page.
At Huffy, we stand behind the quality and durability of our products. We are proud to offer industry-leading warranty coverage:
- Steel Frames: Covered by a limited lifetime warranty.
- Aluminum Frames: Covered by a 10-year warranty.
- Rigid Steel Forks: Covered by a lifetime warranty.
- Shock Forks and Aluminum Forks: Covered by a 1-year warranty.
- All Other Components: Covered for six (6) months from the date of purchase.
For complete details, exclusions, and instructions on how to submit a claim, please visit our Warranty Page.
From concept to concrete.
The Process
Thoughtful engineering
Designed with input from BMX riders like Nick Bruce and Huck Kurinsky, this frame was built to withstand elite-level freestyle riding. Their hands-on feedback shaped a durable, high-performance design that delivers in every session.
Made by riders
The tube set of the Sledgehammer frame was specifically designed by our engineers to eliminate gussets while still maintaining strength and keeping weight low to allow for durability and high performance.
Built for power
Whether you're competing on a global stage or practicing at your local park, the Sledgehammer is designed to perform seamlessly in any environment. This frame is responsive, agile, and up for the challenge of any run.
Frame Geometry
| 18" | 20.6" | 20.9" | |
|---|---|---|---|
| Top tube | 17.5" | 20.6" | 20.9" |
| Head tube angle | 75.2° | 75.2° | 75.2° |
| Seat tube angle | 72° | 72° | 72° |
| Chainstay length | 12.2" (Center) | 13.2"-13.5" | 13.2"-13.5" |
| Bottom bracket height | 10.4" | 11.5" | 11.5" |
| Standover height | 8" | 8.5" | 8.5" |
| Tire Clearance | 2.4" | 2.4" | 2.4" |
| Head tube length | 4.6" | 4.6" | 4.6" |
| Wheel size | 18" | 20" | 20" |
| Weight | 3.92 lbs | 4.43 lbs | 4.55 lbs |
| Top tube | 17.5" |
| Head tube angle | 75.2° |
| Seat tube angle | 72° |
| Chainstay length | 12.2" (Center) |
| Bottom bracket height | 10.4" |
| Standover height | 8" |
| Tire Clearance | 2.4" |
| Head tube length | 4.6" |
| Wheel size | 18" |
| Weight | 3.92 lbs |
| Top tube | 20.6" |
| Head tube angle | 75.2° |
| Seat tube angle | 72° |
| Chainstay length | 13.2"-13.5" |
| Bottom bracket height | 11.5" |
| Standover height | 8.5" |
| Tire Clearance | 2.4" |
| Head tube length | 4.6" |
| Wheel size | 20" |
| Weight | 4.43 lbs |
| Top tube | 20.9" |
| Head tube angle | 75.2° |
| Seat tube angle | 72° |
| Chainstay length | 13.2"-13.5" |
| Bottom bracket height | 11.5" |
| Standover height | 8.5" |
| Tire Clearance | 2.4" |
| Head tube length | 4.6" |
| Wheel size | 20" |
| Weight | 4.55 lbs |
The Experience
Working closely with Huck Kurinsky, the 18” Sledgehammer carries the same structural features as the 20” frame but with scaled down geometry to better suit Huck and younger riders like him who are focused on growth and progression. Featuring a 17.5” top tube, 75.2° headtube angle and 12.2” rear end, the 18” Sledgehammer frame is a high-end machine ready for anything the aspiring rider is looking to do.
Geometry:
- Top tube: 17.5”
- Head tube angle: 75.2°
- Seat tube angle: 72°
- Chainstay length: 12.2" (Center)
- Bottom bracket height: 10.4”
- Standover height: 8”
- Tire Clearance: 2.4”
- Head tube length: 4.6”
- Wheel size: 18”
Additional Features and Specs:
- Brake hardware: Removable brake mounts, cable stop, and gyro tabs
- Seat clamp: Integrated with 6mm Allen bolt
- Rear end: Fits 2.4” Tires
- Gyro tabs: Removable, included
- Headset type: 1-1/8 Integrated
- BB Type: Mid
- Weight: 3.97 lbs.
- Seatpost size – 25.4mm seat post
Nick Bruce |
Freestyle BMX Olympian
"On this frame, I can do my hardest tricks, back-to-back. I've never done that before."
Zach Borton |
Freestyle BMX Rider
“The geometry is dialed. This frame can ride on everything, and it feels great, and I can't wait to see it at the parks, trails, and everywhere around me."
Huck Kurinsky |
10-year-old BMX Phenom
“On the 18-inch Sledgehammer, I’m getting more speed and doing 27-30 foot jumps I couldn’t have done on my 16-inch.”
Jacob Thiem |
Pro Freestyle Rider
"Iconic! The Huffy Sledgehammer is where new age production meets everything the brand was built upon, legendary. To have an aftermarket, professional frame from one of the earliest and most iconic bicycle brands ever, is truly special."
BMX Specifications
- Product Type
- BMX Frame
- Style
- Freestyle
- Frame Material
- 4130 Chromoly
- Headset
- Integrated
- Seat Post Size
- 25.4mm
- Bottom Bracket Type
- Mid
Warranty and Registration Information
Aftermarket BMX Bike Frame Warranty
Please note that the warranty for aftermarket BMX frames differs from our standard Limited Lifetime warranty. All warranty requests will be handled on a case-by-case basis.
The warranty details for our aftermarket BMX frames are:
- 90 day warranty for manufacturer defects
- 1 year warranty against failure for normal use
- Failure due to abuse or neglect will not be covered
- All warranty requests will be handled on a case-by-case basis
- Clear or translucent paints may show surface oxidation on chromoly frames. This oxidation is not considered a defect.
To register your frame click here