We’ve received many inquiries about the differences between WIDFIX and Rivemove. It’s important to clarify that the WIDFIX Extender Series is an entirely different product. While both aim to solve limited rear seat space, PERO developers have created a stronger structure using superior materials and an unlimited adjustment design. This results in a smoother user experience and greater compatibility with a wide range of car models and child seats.
The WIDFIX and the Rivekids Rivemove
Safety Features
- Compatibility
The WIDFIX ISOFIX extender is available in two versions: WIDFIX and WIDFIX PLUS.
WIDFIX: Similar to the Rivemove, this extender is designed for forward-facing ISOFIX car seats with three-point belt installation, specifically for Groups II to III (children weighing 15-36kg / 33.1-79.4lbs). It has successfully passed crash tests. Parents seeking specifications similar to the Rivemove can refer to the WIDFIX.
WIDFIX Plus: In response to the growing demand for newborn car seats, the PERO design team has developed the WIDFIX PLUS, providing enhanced stability, safety, adaptability, and large adjustments. Compared to the WIDFIX and the Rivemove, the WIDFIX PLUS features a higher-strength structure, making it the only ISOFIX extender on the market suitable for all types of car seats: Groups 0 to III (children weighing 0-36kg / 0-79.4lbs).
★ The WIDFIX has successfully passed crash tests with KIDSPERO car seats.
- Safety Certificate
PERO prioritizes car seat safety. WIDIFIX went through the same difficult crash test for car seat regulation. Ensuring that safety in every possible crash and making sure not parts eject or fail under 1000 kilograms of force. Since WIDFIX is not considered to be a car seat and it was unable to obtain any official certifications. The crash test data is stored under a confidentially agreement due to limitations in both Taiwanese and European laboratories. Automotive accessories (such as the Rivemove, seatbelt extenders, etc.) including WIDFIX are unable receive laboratory-issued certificates.
Specifications
| Item | WIDIFX | Rivemove | WIDIFX PLUS |
|---|---|---|---|
| Materials | Taiwan high-quality steel | Galvanized iron | Taiwan high-quality steel |
| Thickness | 2mm | 2mm | 2.5mm |
| Length of extension per side | 0-7cm | 5cm or 7cm | 0-8.5cm |
| Adjustment | Limitless adjustment | Two-section adjustment | Limitless adjustment |
| Fixed | Stainless steel screw | Metal clip | Stainless steel screw |
| Anti-crash | ★★★★☆ | ★★★☆☆ | ★★★★★ |
| Test | EN Crash test | EN Crash test | EN Crash test |
| Carseat weight Groups | GII-GIII | GII-GIII | G0-GIII |
| Carseats | 3-point seatbelt Front-facing carseat | 3-point seatbelt Front-facing carseat | Carrier 360 rotational carseat 3-point seatbelt & harness Front & rear-facing carseat |
Exterior Distinctions
Material Composition
WIDFIX prioritizes meticulous material selection for its products. The outer base of the extender is crafted from high-quality steel in accordance with Taiwanese CNS standard SS series. The screws and anchors are crafted from stainless steel, known for its excellent corrosion resistance and rust-proof properties. This ensures the extender remains unaffected by oxidation or corrosion, preserving its structural integrity over time. Every WIDFIX extender undergoes rigorous saltwater testing in the laboratory, demonstrating superior corrosion resistance even with prolonged use. This durability is key to providing maximum safety for children.
The Material of the Coat
The environmental-friendly matte-black coating is smooth and durable preventing potential damage. If the stainless steel was exposed, it would oxidate and begin to deteriorate.
ISOFIX Lower Anchors
The ISO standard for the length between anchors is 28 cm. However, the Rivemove extender is not manufactured to this specification; its length is approximately 27.4 – 27.6 cm. Parents using certain car seats with thick ISOFIX connectors have reported that Rivemove’s narrow lower anchors cause the connectors to get stuck. Since both the anchors and connectors are made of metal, this often results in damage when detaching the car seat.
The PERO development team has extensive experience in car seat design. WIDFIX is manufactured in full compliance with the car seat ISO standard of 28 cm. It universally attaches to any car seat with ISOFIX connectors, ensuring a reliable and hassle-free connection.
Reduced Gap
The ISOFIX extender creates a gap between the car seat and the vehicle seat compared to a direct installation. The WIDFIX connector length is 14.2cm (5.6in), while Rivemove’s is 15cm (5.9in). WIDFIX’s smaller gap reduces shaking and ensures a more stable ride.
Additionally, we designed the exclusive WIDFIX Protection Cushion to enhance the child’s comfort during every ride. All our products are non-toxic, odorless, safe, and comfortable.
WIDFIX Adjustment
WIDFIX has the ability to always move to the required legnth with our positioning point locks with screws. Our design makes a more stable and safe adjustments that effectly reduce any chance of shrapnel from the device expelling compared to Rivemove’s design.
The Rivemove’s spring design has a metal ball that goes into slots by pushing down on the button and moving the device. This mechanism could cause potenial pinching or damage to the fingernail.
The WIDFIX displacement mechanism has a screw locking design that has better stability and limitless adjustment for optimal length for each vehicle. There is no need to worry about not having the correct fit with the WIDFIX.
Purchasing the WIDFIX
Which WIDFIX should I choose?
Depending on the type of the car seat, the selection of WIDFIX will be different. Parents should choose the applicable device based on the following points:
- Car Seat Groups
- WIDFIX：GII-GIII isofix car seats and isofix boosters
- WIDFIX PLUS：G0-GIII isofix car seats and isofix infant carriers (for all types of isofix car seats)
- Vehicle Seat-Belt and Harness
- WIDFIX: 3-point belt
- WIDFIX PLUS: 3-point belt and harness
This is the most intuitive way to choose a WIDFIX. Once the child uses a harness, it is recommended to choose WIDFIX PLUS.
Where can I buy WIDFIX?
The WIDFIX ISOFIX extender is developed by PERO. Interested parents can follow PERO Facebook to be notified of the latest news, or click on the desired product below to purchase from the PERO offical website.
WIDFIX series FAQ
WIDFIX series FAQ
WIDFIX ISOFIX extenders are divided into two specifications, one is WIDFIX and the other is WIDFIX PLUS. The main differences are as follows:
- WIDFIX ISOFIX extender metal thickness is thicker
The metal of the WIDFIX ISOFIX extender has ED coating, and part of it is stainless steel, so the entire extension will not rust. - WIDFIX ISOFIX extender has better impact resistance.
- WIDFIX ISOFIX extender displacement has no limit on the number of segments.
- WIDFIX ISOFIX extenders are less wobbly.
- Rivemove is fixed with spring clips and WIDFIX ISOFIX extender lock screws to prevent it from popping open in the event of impact.
WIDFIX and Rivemove are different products. WIDFIX ISOFIX extender is developed locally in Taiwan and provides prompt customer service. Both WIDFIX and Rivemove were sent to the EU laboratory for crash tests, but the laboratory does not issue any certificates to car seat accessories.
WIDFIX:
- Material thickness: 2mm
- Length of extension per side: 0-70mm
- Anti-crash: ★★★★☆
- Applicable car seat: GII-GIII car seat
WIDFIX PLUS:
- Material thickness: 2.5mm
- Length of extension per side: 0-85mm
- Anti-crash:★★★★★
- Applicable car seat: G0-GIII car seat
In the forward and back facing car seats that have a harness / five-point belt, the lower anchors must withstand a high amount of impact. The development team strengthened the design and created the WIDFIX PLUS for car seats with a harness / five-point belt.
WIDFIX is for forward facing car seats with three-point belt has the energy transferred through the lower anchors and the safety belt, so the strength needed from the lower anchors is decreased.
The WIDFIX ISOFIX extender has wider car adaptability than the Rivemove. The displacement mechanism of the WIDFIX ISOFIX extender is not limited by the number of segments. It has better displacement adjustment, and can be adjusted according to the distance between the car seat and the door.
In addition, the WIDFIX ISOFIX extender has rounded edges and bevels to prevent damages to the vehicle. The WIDFIX allows for unlimited adjustments, being able to maximize the space in the back seat compared to segment based adjustments that may not have the optimal length for your vehicle. Compared to Rivemove that only provided 2 adjustments that maybe too short or too long for your vehicle seat.
PERO developed a custom fitting auxiliary cushion for the WIDFIX ISOFIX extender – the WIDFIX Comfort Cushion. The cushion is able to provide improved stability, reduced neck pressure, and avoid stunting with forward-facing safety seats and the WIDFIX extender. The WIDFIX Comfort Cushion uses slow rebound memory-foam to enhance optimal stable support.
After using the WIDFIX extender, the ISOFIX installation position will move outward. Generally speaking, the seat belt may not be installed correctly at the same time. We would recommend using WIDFIX PLUS, or you can go to our distributors for a trial installation before purchasing.
