Magnum Saber vs Cyclone Magnum Premium
Two Go Seiba cars sit in Tamiya's Premium Fully Cowled line, but Magnum Saber Premium 19431 and Cyclone Magnum Premium 19440 are distinct assemblies. Magnum Saber carries the earlier design on Super-II. Cyclone Magnum, a later car in the Let's & Go!! story, is fitted to AR with a different shell and wheel package. “Premium” does not make their chassis or parts interchangeable, and the later story position is not a measured speed result.
Follow the item number, not just the Magnum name
Tamiya identifies item 19431 as Fully Cowled Series No.31 and lists 150 mm length. Its Super-II chassis is black with a red battery holder and rear stay. Newly designed metallic stickers finish the Magnum Saber look. The current English product page is short: it does not establish an individual stock gear ratio or a precise tyre compound, so a buyer who needs those specifics should consult the actual instructions before purchasing matching spare gears or tyres. It is enough to identify the classic body and Super-II hardware accurately, without filling gaps from another Super-II release.
Item 19440 is Fully Cowled Series No.40, 155 × 97 × 40 mm, and uses the AR chassis. Tamiya describes its white body with smaller wheel cowls, a prominent rear wing and Magnum graphics. The chassis is metallic-grey ABS with blue low-friction diffuser and roller pieces; fluorescent-green five-spoke wheels carry 26 mm low-profile tyres. Its page explicitly specifies 3.5:1 gears and an included motor. A generic AR chassis table can show another default ratio, but the item-specific 19440 page is the appropriate evidence for this kit. Both are assembly models and require two AA batteries; they are not remote-control cars.
What changes when you move from Super-II to AR?
These are both rear-motor, single-shaft chassis, so they belong to the same broad motor family, but the chassis generations have different mouldings and attachments. Super-II's appeal in this pairing is the earlier Premium presentation with its red-on-black chassis accents. AR adds a body-integrated airflow design, removable underpanel and diffuser, and low-friction rear skid bar in Tamiya's description. For a builder, that means access for cleaning and later attachment choices differ, even before considering the white Cyclone shell. Read the chassis compatibility guide before ordering a plate or stay based only on the shared Magnum label. A sticker sheet or body post for one is not automatically a drop-in replacement for the other.
How to keep a fair comparison
For a collector, photograph the stock body, stickers and chassis colours before making changes; that record helps identify which Premium release supplied a spare part later. For a racer, compare completed machines rather than a generic Super-II or AR chassis specification. Confirm which motor, gear ratio and tyres actually came from each box, use the same battery condition for initial runs, and note any plates or rollers that have been added. An AR car with different motor and tyres is not a test of the Cyclone body against a stock Magnum Saber.
Choose the car, then plan any upgrades
Choose Magnum Saber Premium when you want the original Magnum Saber shape and Super-II build. Choose Cyclone Magnum Premium if you want the later Cyclone body and AR maintenance features. If both are for a display collection, the story relationship may be reason enough to own both; if one will race, build it to its own instructions and log its starting gear and tyre combination before experimenting. You cannot conclude which laps quicker from a 5 mm length difference or from “Premium” branding. The Fully Cowled series guide puts both in the wider line; this comparison is for picking between the two stocked Magnum kits. Check any planned gear or motor against your chosen chassis and the event's current rules.
When viewing second-hand photographs or choosing replacement stickers, look at the actual body and chassis, not just a “Magnum Premium” heading. The 19431 red Super-II stay and 19440 green AR wheels are useful visual identifiers, but a used car may have been modified. Confirm the item number from the original packaging or instruction sheet wherever possible. For a new boxed kit, the numbered store listings above keep the two versions separate and avoid ordering the wrong generation's parts.
Frequently asked questions
Is Cyclone Magnum Premium a colour change of Magnum Saber Premium?
No. It has a different body, item number and AR chassis; Magnum Saber Premium uses Super-II.
Does Tamiya specify Cyclone Magnum Premium's stock gearing?
Yes. The 19440 page says 3.5:1. The present English 19431 page does not state a kit-specific ratio for Magnum Saber.
Can their bodies be swapped directly?
Do not assume so. Check body mounts, wheel clearance and the instructions for the exact chassis and any fitted rollers first.
Sources checked 26 September 2026: Tamiya Magnum Saber Premium 19431 and Tamiya Cyclone Magnum Premium 19440.