NFL & NCAA Collectible Football Helmet Size Guide
Compare popular Riddell collectible football helmet sizes, from compact Speed Mini helmets to premium Axiom, SpeedFlex and Speed Authentic full-size helmets. Find the right size for your collection, autograph display, office, sports room or fan cave.
Riddell Collectible Football Helmet Size Guide
Not sure which collectible football helmet size to buy? Gameday-Collectibles created this NFL and NCAA football helmet size guide to make comparing popular Riddell helmet styles and sizes easier.
Product photos can make mini helmets, mid-size helmets, replica helmets and authentic full-size helmets appear similar in size. In reality, their physical dimensions, display presence and construction can be very different.
Use the guide below to compare Riddell Axiom Authentic, SpeedFlex Authentic, Speed Authentic, Speed Replica, SpeedFlex Mid-Size and Speed Mini collectible football helmets.
Football Helmet Size Comparison Chart
| Helmet | Approx. Height | Size Category | Best Use |
|---|---|---|---|
| Riddell Axiom Authentic | Approx. 11 Inches | Authentic Full Size | Premium Display & Autographs |
| Riddell SpeedFlex Authentic | Approx. 11 Inches | Authentic Full Size | Premium Display & Autographs |
| Riddell Speed Authentic | Approx. 11 Inches | Authentic Full Size | Display & Autographs |
| Riddell Speed Replica | Approx. 9.5 Inches | Replica Full Size | Full-Size Display Value |
| Riddell SpeedFlex Mid-Size | Approx. 7.5 Inches | Mid-Size | Compact Premium Display |
| Riddell Speed Mini | Approx. 5.5 Inches | Mini / Half Scale | Collections & Autographs |
Riddell Axiom Authentic Helmets
Height: Approximately 11 inches
Full Size: Yes, Authentic Size
Shell: Large Axiom Shell
Interior: Axiom Liner System
Riddell SpeedFlex Authentic Helmets
Height: Approximately 11 inches
Full Size: Yes, Authentic Size
Shell: Large SpeedFlex Shell
Interior Padding: Yes
Riddell Speed Authentic Helmets
Height: Approximately 11 inches
Full Size: Yes, Authentic Size
Shell: Large Speed Shell
Interior Padding: Yes
Riddell Speed Replica Helmets
Height: Approximately 9.5 inches
Size: Replica Full Size
Shell: Medium Speed Shell
Interior: Simplified Display Construction
Riddell SpeedFlex Mid-Size Helmets
Height: Approximately 7.5 inches
Full Size: No
Size: Mid-Size Collectible
Helmet Style: SpeedFlex
Riddell Speed Mini Helmets
Height: Approximately 5.5 inches
Full Size: No
Scale: Half Scale
Shell: Mini Speed Shell
Which Collectible Football Helmet Size Should I Buy?
Axiom Authentic
Choose Axiom Authentic for a premium modern NFL collectible with maximum full-size display presence.
SpeedFlex Authentic
Choose SpeedFlex Authentic for modern full-size styling, premium presentation and autograph displays.
Speed Authentic
Choose Speed Authentic for the classic Riddell Speed design in an authentic full-size collectible.
Speed Replica
Choose Speed Replica when you want the presence of a large helmet at a more affordable price than an authentic model.
SpeedFlex Mid-Size
Choose SpeedFlex Mid-Size when a mini is too small but a full-size helmet requires more display space than you have.
Speed Mini
Choose Speed Mini helmets for building larger NFL and NCAA team collections while using minimal display space.
Authentic vs Replica vs Mid-Size vs Mini Football Helmets
One of the biggest differences between collectible football helmet sizes is physical scale and level of detail. Authentic full-size helmets provide the largest display presence and are an excellent choice for premium collections and autographs. Replica helmets provide a similar large-helmet appearance with simplified interior construction.
Riddell SpeedFlex Mid-Size helmets fit between full-size helmets and traditional mini helmets, making them a strong option when display space is limited. Riddell Speed Mini helmets offer a compact half-scale format that makes it easier to build larger NFL and NCAA team collections.
What Is the Best Football Helmet Size for Autographs?
Authentic full-size football helmets provide the largest exterior signing area and are a popular choice for premium autographed football memorabilia. Replica helmets also provide substantial signing space. Mid-size and mini helmets are excellent choices for individual player signatures or collections where display space is limited.
What Is the Best Football Helmet Size for a Display Case?
The best collectible football helmet size depends on the available display space. Authentic and replica helmets create the greatest visual impact, while SpeedFlex Mid-Size and Speed Mini helmets allow collectors to display more helmets in a smaller area. Always measure the inside of your display case before selecting a collectible helmet.
Collectible Football Helmet Size FAQs
How big is a Riddell Axiom Authentic football helmet?
A Riddell Axiom Authentic collectible football helmet is approximately 11 inches tall and provides an authentic full-size display presence.
How big is a Riddell SpeedFlex Authentic helmet?
A Riddell SpeedFlex Authentic collectible football helmet is approximately 11 inches tall and uses a large SpeedFlex shell.
How big is a Riddell Speed Authentic helmet?
Riddell Speed Authentic collectible football helmets are approximately 11 inches tall and provide an authentic full-size display appearance.
How big is a Riddell Speed Replica helmet?
A Riddell Speed Replica collectible helmet is approximately 9.5 inches tall and is designed primarily as a large display collectible.
How big is a Riddell SpeedFlex Mid-Size helmet?
A Riddell SpeedFlex Mid-Size collectible football helmet is approximately 7.5 inches tall, positioning it between a traditional mini helmet and a full-size collectible helmet.
How big is a Riddell Speed Mini football helmet?
A Riddell Speed Mini collectible football helmet is approximately 5.5 inches tall and is considered a half-scale collectible helmet.
What is the difference between an authentic and replica football helmet?
Authentic collectible helmets provide authentic-size shells and more detailed interior components. Replica collectible helmets are designed primarily for display and use simplified interior construction while maintaining the appearance of a large football helmet.
Are collectible football helmets wearable?
Collectible football helmets are intended for display, memorabilia and autograph purposes. They should not be used as protective football equipment or for athletic play.
