Thabks Artis, so BSR has a second business line tho that does sell fleet electric rentals too? But the fast karts really are intended for owner karting and werenāt envisioned as fleet vehicles potentially? Those are more like something a team could choose to use for the series and would sell to clients under the current tent model?
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Yes, BSR has developed its own rental karting solution for the entertainment business, featuring a quick-swappable battery system and charging infrastructure. This innovation helps karting businesses reduce their electric kart investment costs by approximately 40%, while also providing a new experience in terms of dynamics and handling.
Last year, we introduced a major upgrade to our rental karting technology, incorporating numerous improvements based on data collected over recent years, including enhanced durability and other performance metrics. We take great pride in our clients who utilize this opportunity, as our technology stands out as one of the most accessible electric karting solutions compared to competitors.
Additionally, karting centers using BSR karts become selection hubs for BSR professional championships. This allows these businesses to generate more revenue through marketing by offering customers a chance to advance to high-level competitions, rather than remaining solely at the hobby level.
Team Owner here , thereās no shortage of 100% control over fairness, performance and excitement. Daytona was the eye opener for 12k people who chuckled before we hit the grid. Once we did, BSR became the main attraction, especially in the rain.
These Karts even with all their performance (37hp) remained extremely efficient with the top drivers pushing hard for 10 laps (cut short for time management by Daytona Org) @ 42sec lap times the batteries drop to about 92-89%.
I consider myself an RC performance guy however, i can tell you now; do not compare the power delivery management, ESC, BMS, batteries or discharge to that of what BSR has developed.
My son is finding it very hard to jump back in a gas kart for his age group. For him to experience the same speed and excitement he would need a 125 Rotax sr max or shifter kartā¦ PS weāll be in NY at OVRP July 19th to 20th
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Maybe I missed it but what are the class weights for each BSR class?
Please do. Because there are quite a few companies working on solutions to gain efficiency on EV cars. Especially around planetary gears E-CVT (which are much more compact and efficient than regular CVT)
Also putting a big ass motor on a very long gear ratio seems a bit ā¦ archaic.
Truthfully, I donāt see how BSR solution is that different than others. No disrespect, just that EV solutions are rather simple, as the motor is a simple rotor/stator combo and then it is just a lipo/liion battery. And we dont see capacitors for energy regen/deployment neither we see a transmission (2 gears, cvt, e-cvt or whatever).
@Artis_Daugins Do you still have the BSR kart in Luxembourg ? If yes, could you plug me with the person handling it ?
I think he was responding to those of us with Remote Control (RC) car racing experience. That market has already experienced a seismic shift from nitro 2-strokes to LiPo electrics across all levels of racing.
If BSR has managed to develop a package that wonāt require a second battery pack for a race weekend, maybe they are on to something. Still have an initial entry price thatās a bit steep, but if the technical hurdle of power and thermal management is tackled, prices will come down in time.
I just doubt they have the thermal and power management dialed to support a race weekend. A typical club day is 2 warm-up sessions or a couple hours of open practice followed by 6-10 min qualy, 8-15 min heat race, 15-20 min final, with anywhere from 1-2 hours between each session. Can the battery system cope with the type of cycling in a day?
I donāt think there were 12,000 people gathered at the infield kart circuit for the Manufacturerās Cup section of Daytona Kartweek.
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There havenāt been 12,000 spectators at all karting events in North America combinedā¦ lol
Seriously though - someone mentioned price, someone mentioned class weights and someone mentioned run time per battery pack. I would like to hear the answers to all three of those.
Also, Iād like to know how far in to the battery cycle you can go before there is fall off in lap time? Does a 50% battery still perform at a 99% battery lap time? Or is there a disparity in the performance as the battery charge decreases?
I havenāt noticed falloff as power level decreases. I think the battery has to be close to zero for the power to slow.
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Domās right on that one. With these batteries, its a cliff event. It will be interesting to hear the other answers to your good questions.
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Why is it so hard to find results from Kartweekā¦ I mean, I know itās WKA but there are road racing results up, but I cannot find sprint results. Link anyone?
I would like to see how the BSR compares in lap time to gas karts. It was noted above that they were running 42 second laps, which is slower than KA, but with 7 more hp as stated. I want to see how much weight they have over a standard kart and how much thatās affecting lap times.
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I think it was on the live timing app that died?
Ah, that is probably it. They use RaceMonitor for road racing and oval and RaceHero for sprint for some reason.
@Bimodal_Rocket Derek is pretty much spot on. The cliff is actually not the battery, it is the control circuitry in the speed controller shutting down. On the battery you see a very small power fade then hit the low voltage cut-off programmed into the speed controller. Without the LVC circuitry they will actually discharge low enough to permanently damage the battery. I donāt know exactly which Lithium formula they are using, but for LiPo (Lithium Polymer) packs the typical peak charge voltage is 4.2V per cell and the minimum discharge voltage is 3.2V per cell, with a typical LVC around 3.4V. The battery starts to fall off the cliff right around the same point you hit LVC and the fall off is more pronounced under heavier loads like acceleration.
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Because itās WKAā¦. lol
If you can possibly pick a backwards way to accomplish something, guaranteed they have that covered.
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Here are some screenshots of lap times from Daytona. I donāt have access to other lap times, so itās hard for me to comment on this one specifically. However, we know that we were one of the fastest classes in the championship with the BSR-X4 karts. The X5 karts are even more powerful, with an additional 10 hp.
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