GT4 195mm Inline Skate Boot

Side view of GT4 inline speed skate boot in black, showing low cut profile
On skater, GT4 boot mounted to a racing frame during an outdoor training push
Angle view showing heel cup shape and anti stretch upper construction
Top down view highlighting lacing, micro adjustable buckle, and tongue vent
Side view of GT4 inline speed skate boot in black, showing low cut profile
Detail shot of suede style liner and memory foam padding around ankle
Angle view showing heel cup shape and anti stretch upper construction
Top down view highlighting lacing, micro adjustable buckle, and tongue vent

GT4 195mm Inline Skate Boot

Mount separation: 195mm
Regular price $289.00
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Bont GT4 Inline Speed Skate Boot

*This skate ships from Bont's warehouse in China and may take around 2 weeks to arrive. 

The GT4 is a carbon composite inline speed skate boot designed for developing racers and committed fitness skaters who want pro-level construction without the premium price. Built using Bont’s one-piece manufacturing and refined lasts, it delivers a snug, supportive fit, efficient power transfer, and dependable durability for training, marathons, and club racing. Key features include a carbon composite base, anti-stretch reinforcement, and Bont’s highly moldable epoxy resin system for custom comfort.

Key Product Points

  • Carbon composite base with epoxy resin that can be heat molded for a personalized fit and stable power transfer. 

  • One-piece manufacturing based on Bont’s proven lasts for a low, secure fit and consistent control at speed. 

  • Anti-stretch reinforcement is integrated into the boot structure to help maintain shape over time. 

  • Microfiber outer and soft memory foam padding for added comfort during extended sessions. 

  • Vegan-friendly construction with sizes from kids through adults so that teams can kit up across age groups. 

Product Description

Built for speed, shaped by experience

GT4 starts with Bont’s last, refined over decades by founder and designer Mr. Inze Bont. That foundation creates the close, performance fit skaters expect from an inline speed skate, so your foot sits low and locked in, ready to push through corners and accelerate cleanly. Bont builds the shell using one-piece manufacturing, a technique usually reserved for higher-priced custom boots, to create a stiff, consistent platform that does not rely on multiple glued sections. The result is a boot that feels planted, transmits energy efficiently, and stays true to its shape season after season. 

Carbon composite base with custom comfort

Under the microfiber skin is a carbon composite base laminated with Bont’s epoxy thermoset resin. This resin system allows targeted heat molding so you can fine-tune hot spots and pressure points for a glove-like feel. If you have ever struggled with numb toes or ankle rub, the GT4 gives you that extra adjustability to dial it in. For oven and spot molding guidance, follow Bont’s heat molding instructions for composite boots. 

A quick note on molding terminology. GT4 does not include additional thermoplastic sheets inside the boot, a feature found on some Bont models to expand the molding range. Many skaters do not require that level of reshaping, and the GT4’s resin-based heat molding provides ample fine-tuning for most feet. This keeps weight low and value high while preserving the secure feel that speed skaters prefer. 

Fit that lasts

Stretch can quietly ruin a boot’s performance over time. Bont weaves an anti-stretch material into the boot’s structure, stitch-locking it between the skin and liner. This reinforcement helps the upper resist creep so the fit you love on day one stays consistent through hundreds of training hours. Fewer mid-season surprises, more predictable edge control. 

Practical performance for real-world training

GT4 is built to be skated hard. The carbon composite construction strikes a balance between stiffness for strong pushes and a touch of forgiveness for imperfect roads. The 12 mm pitch suits modern racing technique, promoting stable knee tracking and efficient under-body weight transfer. Vents at the tongue help manage heat on summer sessions, and the micro-adjust buckle and laces let you set and forget before you roll out. 

Mounting and compatibility

The boot uses standard 2-point mounting across common spacings, so it integrates easily with Bont’s 2PF racing frames as well as many third-party options. That means you can start with your current frame and wheels, then upgrade components over time without changing your boot fit. For riders building a full package, Bont’s 6061 frames are a reliable match with proven durability for training and race days alike.

Who it is for

  • Skaters moving up from fitness skates to a real inline speed skate boot

  • Club racers and marathon skaters who want a dependable, value-packed racing boot

  • Parents and coaches equipping juniors, thanks to the broad size range and vegan-friendly materials

  • Experienced skaters seeking a training boot that is comfortable, supportive, and easy to maintain 

Why skaters choose GT4

  • Secure low fit from Bont’s long-proven last

  • Moldable carbon composite base to fine-tune comfort

  • Anti-stretch reinforcement for shape retention

  • Materials and construction chosen for performance and longevity

  • Clean, minimalist styling that looks fast without shouting 

Ready to roll

If you want a true inline speed skate boot with thoughtful construction, an adjustable fit, and proven durability, GT4 delivers. Choose your frame and wheel setup, mount, heat mold as needed, and go chase your next personal best. 

Technical Specifications

  • Base material, carbon composite with epoxy thermoset resin, heat moldable

  • Outer material, microfiber

  • Liner, suede style

  • Padding, soft memory foam

  • Pitch, 12 mm

  • Venting, tongue

  • Innersole, EVA thermo moldable

  • Mounting, 2 point, typical spacings 150 mm to 195 mm

  • Sizes, kids 11 to adult 12.5

  • Vegan, yes

  • Recommended use, inline speed skating, club racing, marathon training

  • Brand notes, one-piece manufacturing on a refined Bont last, anti-stretch reinforcement integrated into the structure
    All technical data sourced from Bont GT4 product information and support resources. 

Frequently Asked Questions

Is the GT4 boot heat moldable?
Yes. The carbon composite base uses Bont’s epoxy thermoset resin, which allows heat molding for fit refinement. Follow Bont’s heat molding guide for composite boots to adjust specific areas safely. 

How does GT4 differ from the Jet boot?
GT4 does not include additional thermoplastic sheets inside the boot, which some riders use for more extensive reshaping in an oven. Many skaters do not need that extra range, and GT4’s resin-based molding covers typical hot spot adjustments while keeping the package lighter and cost-effective. 

What frames and wheels work with the GT4?
Most 2 point racing frame within standard mount spacings, 195 mm, will fit. Pair it with Bont’s 2PF 6061 frames and Elemental training wheels for a reliable all-around setup, or mount your preferred racing frame and speed skate wheels based on surface and distance. 

Technology - Anti Stretch

Our proprietary Anti-Stretch material shares similar strength characteristics with Kevlar. We add this material between the outer layer and the skin, which assists prevent the boot from stretching.

To ensure the material does not move, we stitch it to the outer layer and bond it to the liner. In short, this Anti-Stretch material becomes a part of the boots’ structure. As a result, Bont boots do not stretch out as much as competitors’ boots.

Anti Stretch

Technology - Micro Adjustable Buckle

The Bont micro-adjustable buckle provides you with an additional level of tightness. Easy to adjust when wearing with a simple bend down to tighten, even during a race if need be.

Micro Adjustable Buckle

Buy with confidence

You can always buy Bont Skates with confidence. Skaters have been buying Bont Skates since 1975 and we are the world’s largest manufacturer of inline speed skates and short track speed skates and custom skates as well as one of the largest manufacturers of roller derby skates.

We have a reputation for looking after our customers. We do everything possible to ensure that our products are made to the highest standards. As an example, all of our boots go through 16 individual stages of quality control before they are shipped out.

Our inline wheels, roller skate wheels and frames are all tested for strength and fatigue on the computer using the most advances computer-aided stress testing available. Bont bearings are produced in partnership with some of the best speciality bearing manufacturers in the world.

All Bont products go through a rigorous team testing phase before being brought to market. Team Bont skaters are the very best in the world.

When you buy Bont Skates, you get the best skates on the market. 

Technology - Carbon Fiber

Ever wondered what Carbon Fiber is? For instance, is it Carbon Fiber or Carbon Fibre? To clarify, Fibre and Fiber have the same meaning. Fibre is the British English spelling, while Fiber is the US English spelling.

Carbon Fiber is a revolutionary material. It is as strong as steel with a fraction of the weight.

Carbon Fiber consists of mainly bonded carbon atoms. For example, the fibers’ long axis consists of particles that have been bonded together and aligned. Following this, a yarn is created by twisting several thousand of the threads together. Finally, a piece of fabric is woven from the yarn.

Here at Bont, we have been producing carbon-based boots since 1989. Above all and most importantly, we source our carbon exclusively from the world’s number one carbon manufacturer, Toray of Japan.

Carbon Fiber 3K PLAIN

3K PLAIN


3k plain is a tightly woven carbon, which is commonly used in the Aircraft industry and Bont shoes.

Carbon Fiber Unidirectional

UNIDIRECTIONAL


An extremely stiff, lightweight, and adaptive carbon fiber. We use Unidirectional Carbon in our boots, which allows us to lay the carbon in a direction we choose. Therefore provide extremely stiff and lightweight boots. For example the Vaypor.

Carbon Fiber 12K PLAIN

12K PLAIN


A cheaper form of carbon. 12K Plain carbon is not as strong as 3k Plain carbon, which results in the price being around 20% cheaper.

 

INDUSTRY MISREPRESENTATION

In the old days, if you purchased a plastic or nylon based shoe, you knew what you were getting. However, nowadays, with all of the expensive modern materials, it is getting harder to identify what is in your product. As a result, you may not be getting what you thought you purchased.

Here are some handy tips on different ways manufacturers use materials. That is to say, use these points for consideration in your next purchase.


One layer of carbon
Often, manufacturers misrepresent carbon shoes. For example, the shoe base can be an injection-molded plastic, or nylon, or fiberglass base and usually covered with a single layer of carbon fiber. Unfortunately, when you buy a shoe, and you see that it has a carbon base, the chances are that only the outer layer is carbon.

Unidirectional carbon
A variety of shoes are marketed as Unidirectional carbon. However, many of these shoes use injection molded carbon in the plastic and call this Unidirectional Carbon. Consequently, we feel this is a misuse of the terminology. For example, here at Bont, Unidirectional Carbon means carbon fiber, where all of the strands travel in the same direction.

Silver fiberglass
Many shoes use a plastic injection molded base with some carbon particles in it. Also, these shoes typically have a single layer of silver fiberglass for the outer layer. As such, manufacturers advertise ‘carbon fiber’ for these shoes. They are allowed to use this term as there is carbon dust in the plastic mold under the outer fiberglass layer. However, the fiberglass woven material on the outside is not carbon. Above all, remember Carbon Fiber is always black.

100% composite
What is 100% composite? This term almost covers anything. Therefore, the question you need to ask when considering a composite boot is, A composite of what? In short, a composite boot is usually a nylon fiberglass composite.

Monocoque
A Monocoque shoe is where the carbon is directly laminated onto the liner. Unfortunately, some companies are calling a carbon shell with an integrated heel cup a Monocoque shoe; however, it isn’t.

In summary, be aware of companies jumping on the bandwagon of carbon technology and using keywords to promote their product. Above all, do your research and be mindful of what you are purchasing. We hope this helps your decision in your carbon boot purchase.
Technology - Eyelets

Bont eyelets have a large head, which spreads the pressure over a larger area to help overcome any discomfort. On the other hand, small eyelets can put pressure on a small area and can cause pain.

Eyelets

 

Technology - Footbed
Footbed
Made in house, from heat-moldable EVA, the Bont Footbed is the first piece of a boot added to the Last. To ensure it retains its extreme light-weight and heat-moldable characteristics, the Footbed is 65A hardness and only 3mm thick.

 

 

Heat Molding

Bont manufactures the most heat moldable boots available in the market. Improved continuously for over 45 years, Bont proprietary resin is extremely stiff that becomes pliable at relatively low temperatures.

Bont boots are moldable over the entire base, unlike other skates that are moldable only in select locations. Importantly, this provides skaters with the most anatomically designed boot on the market today. Additionally, skaters with Bont boots can fine-tune the fit of the whole boot to get that customized fit.

Head to our Heat Molding page for instructions on how to heat mold your inline skate boots, carbon roller skate boots or your fibgerglass roller skate boots.

 

Technology - Lace Cover

Most of our Bont boot models have a lace cover as the lace cover gives you extra support, whilst neatly tucking your laces away.

Lace Cover

Technology - Last Design

What is a Last? The Last is a plastic replica of a foot which the boot is built around.

Here at Bont, we have been perfecting our Lasts since 1975 and the process is ongoing. Unlike the standard Last many companies use, Bont continually focuses on developing and improving our Lasts so that your boots fit right out of the box.

 

Last Design

Technology - Liner

We reviewed hundreds of different types of Liners before choosing a suitable product to use in our Bont boots. Bont uses Microfiber, Suede-Like, and Durolite as our liners. Ensuring we are working towards sustainability and animal welfare, Bont is using Vegan-friendly products. In short, our liners are light-weight, durable, fight odor, and do not easily break down with sweat.

 liner-suede-lliner-microfiberliner-durolite

Technology - Manufacturing

Manufacturing skates by hand, inside out, is a method Bont retains and is exceptionally proud of. The manufacturing process is far more skill-intensive and time-consuming than other manufacturing processes. Perhaps, most importantly, this enables Bont skates to lead the industry in performance. It does, however, result in a higher production cost than mainstream skate construction methods.

We continue to develop and refine our manufacturing process to maintain the best delivery of our high-quality products. For example, processes such as the use of generic vacuum boxes for the curing of carbon have been replaced. Today, for carbon curing, we use methods such as pressure wrapping. Pressure wrapping provides four atmospheres of pressure rather than one atmosphere you find in traditional vacuum forming.

Inze Bont’s, the renowned skate designer, engineering, has allowed our production line to optimize the manufacturing of our handmade monocoque skates in the most time-efficient manner possible.

Our innovative manufacturing processes match our drive for design innovation. Lighter, Stronger, Faster.

Read our process for Last Design, Footbed, Liner, Anti-Stretch, Carbon Fiber, Upper, and more in the self-titled sections below.

Technology - One Piece Construction

At Bont, we produce high-end skates using a method we call One-Piece Construction. This process is far more skill-intensive and time-consuming, resulting in far higher costs than mainstream skate construction methods. However, this method allows our range of skates to lead the market in performance. 

When the liner and skin of a boot have been glued to a pre-made base it is called a two-piece boot. Much of the stitching on a two-piece boot is purely cosmetic. Therefore, the stitching serves no structural purpose. It is positioned before the boot is made. As such, a two-piece boot can focus on cosmetics for stitching.

The stitching on Bont's one-piece boots is stitching is not cosmetic. It stitches the outer skin to the anti-stretch material that is bonded to the carbon. 

 

Technology - Outerskin Microfiber

Microfiber is a durable and lightweight material that can withstand minor crashes without scratching. Additionally, Microfiber comes in a wide variety of colors and three types of finishes; matte, shiny, and metallic. Finally, Microfiber is one of the Bont Vegan products.

Outerskin Microfiber

Technology - Padding

This boot utilizes closed cell memory foam. Ensuring your shoe remains lightweight in wet conditions, Bont padding does not retain water. Additionally, this ensures sweat which can begin to break down the durability of the shoe is not absorbed.

Padding

Technology - Resin Development

Here at Bont, we have been conducting resin development for over 45 years. We formulated a resin that is super stiff, yet moldable at low temperatures. Furthermore, fast cure time is critical for our requirements. Additionally, we are one of the only boot manufacturers who develop their resins in-house.

Our resin softens at just 60°C (140°F), which is the lowest in the industry. As such, you can reheat our resin as many times as required. That is to say; you can heat your boot and easily mold it to your foot. Following the heating, allow your boot to set and cool for your custom mold.

Epoxy or polyepoxide is a thermosetting epoxide polymer that cures when mixed with a catalyzing agent or hardener. We control Polymerization, called curing, through temperature and the choice of resin and hardener compounds. The process can take minutes to hours.

The amount of hardener added to the resin is critically dependent on the temperature of the air and the amount of humidity. For this reason, we have a computer that mixes the resin and hardener. This computer dispenses the resin after measuring the air temperature and humidity.

Most manufacturers use a process known in the industry as pre-preg. A process that involves “pre-impregnating” resin into the carbon fiber.

Pre-preg, in virtually all applications, the carbon fiber manufacturer chooses the resin. Its a one shoe fits all kind of deal. The boot manufacturer has no way of altering the resin customize heat moldability requirements of modern boots. For this reason, many competitors require high temperatures to make their boots heat moldable. Often the boot moldability is limited, even at these high temperatures.

 

Technology - Team Testing Inline

Our professional inline speed skating team are some of the best skaters in the World. They love to give us feedback! From the little things like the placement of the buckle to trialing the latest materials, they help Bont create products that not only look good but perform at the elite international level.

 6 images of Bont skaters on inline skates

 

Technology - Tendon Pillow

The tendon pillow in Bont inline skates refers to the padding that pads around the Achilles tendon. It secures the foot in place to prevent heel slippage for the perfect fit.

Bont skate boot taken from top where you foot goes in

Technology - Upper

The Bont Upper, the upper section of the boot, is lightweight, glued and sewn onto the boot. We punch holes by hand through the Upper and the Liner for ventilation. Buckles and straps are attached to ensure your foot is pulled down and pushed to the back. Finally, we clean the excess glue off, and the boot is ready for skating. To be deemed ready for action, the boot is required to pass sixteen stages of independent quality control. As a result, we provide you with the best strength to weight ratio on the market.

 

 

LIGHTER. STRONGER. FASTER.

We push the limits of technology to help you perform at your best.