We will be holding the Yokomo Off-Road Challenge on Sunday, April 26, 2026. This will be a co-hosted event with the G-FORCE "GFCC."
Based on the RO class from the recently held "RO Off-Road Championship," the regulations require the use of a Yokomo ZERO 3 Brushless 21.5T motor, along with the body and main chassis from the RO series. Optional parts must also be Yokomo-branded.
Entries will open on Friday, March 13, at 12:00 PM. As the capacity is limited to 20 participants, please review the regulations below and apply early if you wish to participate.
【Event Class】Yokomo RO Class
【Venue】Yatabe Arena Off-Road Grand Prix Course
・Entry Method: Online entry only
・Entry Form URL ws.formzu.net/sfgen/S7115557
・Entry Fee: 3,000 JPY
・Capacity: 20 participants (First come, first served; registration ends when capacity is reached)
【Race Format】
Qualifying: 3-minute best lap race (staggered start)
Final: 4-minute lap race
【Regulations】
◎ Eligible Vehicles: RO1.0/2.0 resin chassis vehicles; must use RO1.0/RO2.0 standard bodies (lightweight types allowed).
◎ Optional Parts: Must be Yokomo-branded.
◎ Motor: Yokomo ZERO 3 Brushless 21.5T motor [YM-3BL215A] (Mandatory).
◎ Battery: Yokomo LiPo Shorty 3500mA [YB-V235BB] (Mandatory).
◎ Gear Ratio: Free.
◎ ESC: Must be an ESC with a confirmable non-boost, non-turbo, non-timing "blinky" mode.
◎ Tires: Front tires: [TF-620G] or [TF620]
Front wheels: B2-821HWA or B2-821HYA (Mandatory) *Modification of tires/wheels is prohibited.
Narrowing tires to glue onto specified wheels is prohibited; front inner foams must not be used.
*Use of grip additives or parts cleaner on tires is prohibited.
Rear tires: Schumacher Cactus [YAU-6838A] or Azami [YAU-6905] (Mandatory).
◎ Vehicle Weight: 1,350g or more (including transponder).