RaceQuip 3930093 SFI 3.3 Junior Youth Arm Restraints Black

The RaceQuip 3930093 SFI 3.3 Junior Youth Arm Restraints are purpose-built for young drivers competing in open-cockpit race cars quarter midgets, Jr. Dragsters, junior sprint cars, and similar youth-class vehicles. Carrying a full SFI 3.3 certification, the junior arm restraints feature a Y-Strap design with padded arm bands and hook-and-loop cuff closure that adjusts from 7 inches to 10 inches in circumference sized specifically for children's smaller forearms. Premium 2-inch polypropylene cuffs and 1-inch tether webbing connect to a steel ring engineered to slide over your child's shoulder harness end link, so the arm restraints release automatically when the harness releases. Sold as a complete kit (both arms) in black.

What SFI 3.3 Certification Means for Youth Racers

SFI 3.3 is a specification published by the SFI Foundation that defines minimum performance and construction standards for arm restraints used in motorsport competition. Products that carry the SFI 3.3 label have been independently tested and certified to meet those standards they are not simply self-certified by the manufacturer. The SFI Foundation writes and manages these specifications, which cover material strength, hardware integrity, and overall construction.

For youth racers in open-cockpit cars, SFI 3.3 certification is not optional at most sanctioned events. Quarter midget associations, NHRA Jr. Dragster programs, and regional sprint car series commonly mandate SFI 3.3 arm restraints as a condition of entering the grid. Running a non-certified restraint may disqualify a junior racer at tech inspection, regardless of how the restraints look or feel. The SFI 3.3 rating on these junior restraints means they will pass tech at any sanctioning body that recognizes SFI specifications -- giving parents and crew chiefs one less item to worry about on race day.

SFI certifications on driver safety equipment are valid for a defined period and should be replaced per the manufacturer's recommendations and the applicable sanctioning body's guidelines. Inspect the restraints before each event and replace them if the webbing shows fraying, cuts, or significant fading from UV exposure.

Y-Strap Design: Why It Matters for Junior Drivers

The junior arm restraints use a Y-Strap configuration with padded arm bands a design that differs meaningfully from the individual-strap geometry used on the adult SFI version (394004RQP). Here is how the two approaches compare in practice:

• Y-Strap (Junior, 3930093RQP): The single tether splits into a Y shape, distributing load across the arm band and spreading restraint force over a broader area of the forearm. The padded arm bands add a layer of comfort between the webbing and the child's skin important for young drivers who may be more sensitive to chafing or pressure during longer sessions.
• Individual Straps (Adult, 394004RQP): Two separate tether straps anchor to distinct attachment points rather than converging in a Y. This geometry is engineered around adult arm proportions and larger cockpit dimensions where more independent adjustment is practical.

The Y-Strap design also simplifies fitment adjustments in the pits parents can dial in the cuff and tether lengths quickly, which matters when a young racer is eager to get on track. The hook-and-loop cuff closure further speeds up the process compared to buckle-style alternatives.

RaceQuip Arm Restraint Lineup: Which Version Is Right?

RaceQuip offers three arm restraint configurations to cover youth and adult drivers, with and without SFI certification. The table below maps the key differences so you can order the correct set the first time.

Quick guide: If your sanctioning body requires SFI 3.3 and the driver is a child with a forearm circumference below 10 inches, the junior 3930093 is the correct choice. If the driver is an adult with a larger forearm, step up to the 394004. If SFI certification is not required at your track and cost is the primary concern, the 391002 is the entry-level option but verify your rulebook first.

What's Included

These junior arm restraints ship as a complete kit everything required for both arms is in the box. Nothing additional needs to be purchased to install and use the restraints.

• 2 padded arm cuffs (one per arm) with 2-inch polypropylene webbing and hook-and-loop closure
• 2 tether straps (one per arm) with 1-inch polypropylene webbing, adjustable to 19 inches maximum
• 2 steel rings (one per tether) designed to slide over the shoulder harness end link
• Y-Strap assembly connecting both arms

Full Specifications

Quality Standard and Prop 65 Notice

RaceQuip has been manufacturing motorsport safety equipment since 1975 and is one of the most widely used safety brands in North American club and professional racing. These junior arm restraints are SFI 3.3 certified, which means they have been manufactured to meet the independent performance and construction standards established by the SFI Foundation a meaningful quality benchmark beyond general brand claims. For specific warranty terms applicable to this product, contact RaceQuip directly or refer to the documentation included in the box.

As with all SFI-rated driver safety products, arm restraints should be inspected before each use and replaced according to SFI guidelines and your sanctioning body's rules. A product that has sustained impact, shows webbing damage, or has exceeded the certification's service life should not be used in competition.

California Residents Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.p65warnings.ca.gov.

About RaceQuip

RaceQuip was founded in Columbus, Ohio in 1975 and has grown into one of the most recognized motorsport safety equipment brands in the United States and Canada. The brand covers helmets, fire suits, harnesses, arm restraints, seats, gloves, shoes, and accessories across every level of motorsport from entry-level weekend autocross to sanctioned sprint car and dragster competition. In 2006, both the RaceQuip and Safe-Quip brands were consolidated under Vesta Motorsports USA, Inc., bringing together decades of safety engineering expertise under a single product line. RaceQuip's widespread adoption at all levels of North American racing reflects a consistent commitment to meeting and exceeding SFI and other applicable safety certifications across their product range.

Frequently Asked Questions

What does SFI 3.3 mean on arm restraints?
SFI 3.3 is a specification published by the SFI Foundation that defines minimum performance and construction standards for arm restraints used in motorsport competition. Products that carry the SFI 3.3 label have been independently tested and certified to meet those standards they are not simply self-certified by the manufacturer. Most open-cockpit racing sanctioning bodies in North America (quarter midget associations, NHRA Jr. Dragster programs, sprint car series, and others) require SFI 3.3 arm restraints as a condition of tech inspection clearance. Running a non-certified restraint, even a quality one, may result in disqualification at technical inspection.

What age and size range are the RQP 3930093 youth arm restraints designed for?
These junior arm restraints are designed for youth racers with forearm circumferences between 7 inches and 10 inches. This range covers most children competing in quarter midgets, Jr. Dragsters, and similar junior open-cockpit classes. If the driver's forearm circumference exceeds 10 inches, the adult SFI version (394004 RQP) with a 10-to-15-inch adjustment range is the appropriate choice. Measure the child's forearm at its widest point before ordering to confirm fit.

How do I install these junior arm restraints on a racing harness?
The steel ring at the end of each tether is designed to slide over the end link of the shoulder harness strap. This connection method ensures the arm restraints release simultaneously with the harness when the quick-release buckle is opened a critical safety feature in an emergency extraction. Wrap the padded cuff around the driver's forearm, secure the hook-and-loop closure snugly (not restrictively), run the tether to the shoulder harness end link, and thread the steel ring over it. Adjust the tether length so the driver's arms are gently restrained but not forced into an uncomfortable position. Recheck the adjustment after the first few laps, as hook-and-loop closures may compress slightly with initial use.

What is the difference between the junior 3930093 RQP and the adult 394004 RQP?
Both carry SFI 3.3 certification, but they differ in three important ways. First, cuff size: the junior version adjusts from 7 to 10 inches (children's forearms), while the adult 394004 RQP adjusts from 10 to 15 inches (adult forearms). Second, strap design: the junior version uses a Y-Strap with padded arm bands, while the 394004 RQP uses individual straps without the padded band construction. Third, tether length: the junior version adjusts to a maximum of 19 inches; the adult version extends to 20 inches. Do not use the adult version on a small child the cuff will not close securely at the smaller circumference ranges.

What is the difference between the 3930093 RQP (SFI) and the 391002 RQP (non-SFI)?
The 391002 RQP is a non-SFI arm restraint at a lower price point. It uses an individual-strap design and fits both youth and adult wrist sizes. The SFI 3.3 junior restraints carry full SFI 3.3 certification and are the youth-specific version with the Y-Strap and padded arm bands. If your sanctioning body requires SFI 3.3 at tech inspection, only the 3930093 RQP (or the adult 394004 RQP) will pass. If SFI is not required and you are looking for a practice or informal-use restraint, the 391002 RQP is a lower-cost option but always verify your rulebook before the event.

Will these arm restraints affect my child's race vehicle warranty (Magnuson-Moss)?
Arm restraints are driver safety accessories they are not vehicle modifications and are not subject to vehicle warranty considerations. The federal Magnuson-Moss Warranty Act governs aftermarket vehicle parts and dealer warranty claims; it does not apply to driver safety equipment. There is no warranty conflict associated with using SFI-certified arm restraints in a race vehicle.

Does this product carry a Proposition 65 warning?
Yes. This product carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm. This warning is standard for products containing steel hardware and synthetic webbing materials in the motorsport safety category. California residents should visit www.p65warnings.ca.gov for additional information. The Prop 65 warning does not indicate a defect in the product it reflects California's chemical disclosure law, which applies broadly to thousands of consumer products.

How do I clean and maintain these arm restraints?
Hand wash the cuffs and tether webbing in cool water with mild soap. Do not machine wash, bleach, or dry clean. Allow the restraints to air dry completely before storing or using them do not apply heat from a dryer or direct sunlight for extended periods, as heat degrades polypropylene webbing over time. After washing, inspect the hook-and-loop closures for debris and lint, which can reduce grip; use a stiff brush to clear the loop side if needed. Inspect the steel rings for any rust or deformation after cleaning. If the webbing shows fraying, cuts, color fading from UV exposure, or the hook-and-loop closure no longer holds securely, replace the restraints before the next competition event.

What hardware and tools are needed to install these arm restraints?
No tools are required. The kit ships complete with all hardware included cuffs, tethers, and steel rings. Installation consists of wrapping the cuffs around the driver's forearms, securing the hook-and-loop closures, and threading the steel rings over the shoulder harness end links. The entire process takes under two minutes once the harness is in place. No drilling, cutting, or additional hardware purchases are needed.