#713
Denis Dumanov
Driver- Chassis
- CRG
- Classes
- ROK VLR Masters · KA100 Masters
- Series
- ROK Cup · SKUSA
1stBest 2026
ROK VLR Masters

Bears Motorsport is a karting team before it is anything else. We started fitting out trailers because we could not buy one that made sense, and the people who spec yours are the ones loading a kart at seven in the morning.
None of this is impressive at scale. At five people it is simply how the work gets done, and it is the reason we have no interest in being bigger.
Every build goes through the same sign-off before it leaves the bay: every fastener torqued, every circuit put under load, every door, ramp and latch cycled. Nothing leaves Napa that one of us would not tow to a race that weekend.
A tyre rack that worked itself loose on the interstate. A shore inlet on the wrong side of the trailer. Problems that only surface at eight on a Sunday morning. Your build starts from the version that survived all of it.
Fitting out a shell is about a week of work. The six months everyone else quotes is their backlog, not their build. We hold a fixed number of slots, so from day one yours is a trailer in a bay rather than a line on a list.
We never hand a finished trailer to a broker or a carrier. One of us tows it to you and does the walk-through in your driveway. Free inside a hundred miles of the shop, a dollar a road mile after that — the cheapest delivery we have seen anywhere in the country.
Not a manufacturer that discovered motorsport as a market. The order matters, and it shows up in the details.
There are five of us. Two are active drivers — Denis Dumanov in kart 713 and Dmitrii Ryzhov in kart 777, both on CRG chassis in ROK VLR Masters and KA100 Masters. That means two of the five spend their weekends doing exactly what your trailer has to support. The other three cover fabrication, electrical and running the shop.
That is the whole company. Nobody here has a sales title. When you call, you get somebody who has either welded a rack that week or driven a race that month, and usually both.
A bigger operation would need a second shift, a sales desk and a marketing budget, and all three would end up in your invoice. Staying at five is what lets us price the fit-out honestly and turn a trailer around in days rather than weeks.
It also means we are genuinely limited. We take a fixed number of build slots each month and we will tell you the real date on the first call rather than after the deposit.

Both run CRG chassis in ROK VLR Masters and KA100 Masters, out of our own trailer, at the same rounds your trailer would be going to. Every dimension on the build sheet was settled by one of them losing time to it on a Sunday.
#713
1stBest 2026
ROK VLR Masters
#777
4thBest 2026
ROK VLR Masters
Published in full, including the rounds that went badly. A trailer builder who only shows you the podium is editing, and you would be right to wonder what else got edited.
| Round | Dumanov | Ryzhov |
|---|---|---|
| TC1 · R1 | P9 | P4 |
| TC1 · R2 | P3 | P9 |
| TC1 · R3 | P2 | P9 |
| TC2 · R1 | P1 | P8 |
| Round | Dumanov | Ryzhov |
|---|---|---|
| Round 1 | P19 | P14 |
| Round 2 | P12 | P17 |
| Round 3 | P10 | P9 |
Final results, RaceSelect live timing · 2026 season. The same table is on our store site, where the pit gear we race with is sold.
Everything we fit into a trailer was decided by something that went wrong at a race meeting. These are the weekends that wrote the build sheet.

Two of the five race competitively. The stand heights in our trailers are set to what a back can take on a Sunday, because we are the ones lifting.

Twenty minutes between sessions is the constraint everything is designed around. If a tool is behind another tool, the layout is wrong.

Kart 713 and kart 777, both CRG, are the reference for every dimension in the fit-out. If a stand clears 713 with room for two hands, it clears yours.
A trailer is a lot of money to hand over on the strength of a website. Every claim on this page is attached to something you can walk up to and open — including the one we drive to your door.
We are in the paddock at SKUSA and ROK Cup rounds on the West Coast, running out of our own trailer. Tell us which round you are at and we will tell you where we are parked — open the doors, pull the ramp, ask the awkward questions with the thing in front of you.
Ask us where we’ll be nextNapa, any weekday. There are three bays and there is usually a trailer in each stage — a bare shell, one halfway through wiring, one being signed off. Walk the floor, look at the joints nobody photographs, and spec yours standing next to a real one.
Drop in — no appointment neededOnce yours is in a bay you get photographs at every stage, from the shell arriving to the last circuit tested. If something changes, you hear it from us the day it changes rather than at handover.
Photos at every stageThe Bay Area, Sacramento, Sonoma, Stockton and everything between. We tow it to you and do the full walk-through in your driveway at no charge.
One way, counted from the shop. Los Angeles is $330. Las Vegas is $470. No fuel surcharge, no brokerage, no seasonal pricing on top.
We do not use transport companies, brokers or carriers at any distance. Your trailer is towed by somebody who spent the week building it.
If we are racing the same weekend as you, we bring your trailer with us and give you the keys there — loaded, tested and ready to work.
Tell us how you race and we’ll come back within one business day with a layout drawing and a fixed price.