American Flat Track has announced new rule changes for the 2022 season, along with a plan to consolidate the Mission SuperTwins and Production Twins classes into a single premier class beginning in 2023. While the rule changes are small in number, they are notable, and combined with the mid-year changes in 2021, we could see significant impact to the SuperTwins field.
在2022年,船尾有一個過渡計劃,可導致2023年消除生產雙胞胎。在2022賽季中,生產雙胞胎主賽事中的前四名終結者將作為任務生產雙胞胎挑戰的一部分轉移到Supertwins主賽事。 Mission Foods還以100,000美元的應急資金在挑戰中加油。 由於船尾單打比賽通常在生產雙胞胎和Supertwins的主要賽事之間進行,因此車手將有一些時間屏住呼吸並重新集結為第二個主。有資格獲得Supertwins開始的四個生產雙胞胎騎手將設置在Mission Production Twins Challenge Row上,這是說出網格後排的好方法。 船尾將過渡框起來是生產雙胞胎類和首屈一指的Supertwins類之間的“橋樑”。雖然我喜歡這個想法和賽車手在口袋裡投入更多現金的機會,但由Mission Foods提供,但現實是,過去幾年中的超級雙胞胎參賽作品一直在逐漸減少到沒有填滿網格的地步。似乎填寫主要課程的船尾計劃是擺脫生產雙胞胎。 Corey Texter是在新的過渡系統下,有資格參加2022年Supertwins主要活動的生產雙胞胎賽車手之一。美國平坦軌道照片。 生產雙胞胎競賽自行車具有競爭優勢 由於只有比賽的印度FTR750不允許在生產雙胞胎課上,我們很可能會看到Yamahas(包括生產雙胞胎冠軍Corey Texter的騎行者),一些主力的Kawasakis,可能是有競爭力的Harley-Davidson XG750 XG750 XG750 XG750,Johnny Lewis-Lewis-Lewis-Pilot pilt的enfief,如果我的enfiel and of the Orguntion the Orguntion the Ornulty of Planduny of Allundy Ally可能是79歲的KTM。 Supertwins Main。對於晉級總理級別的生產雙胞胎賽車手來說,他們將有一些規則的優勢,可以幫助他們更具競爭力。 生產雙胞胎現在可以運行900 cc發動機,使它們比占主導地位的印度FTR750的150 cc優勢。他們還可以使用40毫米的節氣門體,而不是38毫米和32毫米(一分鐘內)在Supertwins的油門體。另外,根據規則簿,如果傳感器是供體摩托車上的原始設備,則某些生產雙胞胎將有可能使用牽引力控制。因此,像Yamahas和KTM這樣的自行車可以利用電子控制優勢。 還值得注意的是,船尾已經放棄了荒謬而昂貴的“買入”條款,該條款要求團隊僅需支付數千美元的額外費用才能進入Supertwins。 埃斯滕森賽車(Estenson Racing)的J.D. Beach是Supertwins的最佳終結者,他在2021年不在印度FTR750上。在他的Yamaha MT-07機器上,Beach在TT軌道上特別強大。美國平坦軌道照片。 Supertwins的規則更改 船尾還對Supertwins班級進行了一些規則更改,要了解它們的去向,您需要了解我們去過的位置。 印度FTR750統治了Supertwins,在2021年的積分積分榜上佔據了前10名。在大多數比賽中,印度FTR佔該領域的80%,對陣埃斯滕森賽車比賽的Yamaha MT-07S。哈雷·戴維森(Harley-Davidson)似乎放棄了試圖使XG750競爭力。 漏洞是FTR750不是生產摩托車。它在2017年獲得了特別的豁免,該豁免本應在2019年耗盡,並再次擴展。現在的問題是,禁止摩托車將是Supertwins班級的死亡。 Supertwins已成為FTR班,就像前30多年的Harley-Davidson XR750班一樣。
Since AFT singles races typically take place between the Production Twins and SuperTwins main events, the riders will have some time to catch their breath and regroup for the second main. The four Production Twins riders who qualify for the SuperTwins start will be set on the Mission Production Twins Challenge Row, which is a nice way of saying the back row of the grid.
AFT is framing the transition as a "bridge" between the Production Twins class and the premier SuperTwins class. While I do like the idea and the opportunity for racers to put some more cash in their pockets, courtesy of Mission Foods, the reality is that Super Twins entries over the past few years have been dwindling to the point of not filling the grid. It seems like the AFT plan to fill out the premier class is to get rid of Production Twins.
Production Twins race bikes get advantages to be competitive
With the race-only Indian FTR750 not allowed in the Production Twins class, we're likely to see Yamahas (including the one ridden by Production Twins Champ Corey Texter), a few workhorse Kawasakis, possibly a competitive Harley-Davidson XG750, the Johnny Lewis-piloted Royal Enfield and, if my sources are correct, possibly a KTM 790 all running in the class this year and potentially advancing to a SuperTwins main. For the Production Twins racers who do advance to the premier-class main, they'll have a few rules advantages that could help them be more competitive.
Production Twins can now run 900 cc engines, giving them a 150 cc advantage over the Indian FTR750s that dominate SuperTwins. They can also use 40 mm throttle bodies as opposed to the 38 mm and 32 mm (more on this in a minute) throttle bodies in SuperTwins. Also, some of the Production Twins will have the possibility of using traction control, according to the rule book, if sensors were original equipment on the donor motorcycle. So bikes like the Yamahas and KTMs could leverage electronic control advantages.
It’s also worth noting that AFT has dropped the ridiculous and expensive "buy in" clause, which required teams to pay an additional fee amounting to thousands of dollars just to get into SuperTwins.
Rules changes in SuperTwins
AFT also made some rules changes in the SuperTwins class, and to understand where they are going, you need to understand where we've been.
The Indian FTR750 dominates SuperTwins, taking eight of the top 10 positions in the points standings in 2021. In most races, Indian FTRs make up 80 percent of the field against a few Estenson Racing Yamaha MT-07s. Harley-Davidson has seemingly given up on trying to make the XG750 competitive.
The rub is that the FTR750 isn't a production motorcycle; it was given a special exemption in 2017 that was supposed to run out in 2019 and was yet again extended. Now the issue is that banning the motorcycle would be the death of the SuperTwins class. SuperTwins has become the FTR class kind of like it was the Harley-Davidson XR750 class for the previous 30-plus years.
因此,AFT現在可以通過規則更改來平衡競爭環境,以允許其他自行車與專用的FTR750競爭。在2021賽季中期,AFT將FTR的最小重量從310磅增加到330磅。他們還減輕了允許的後輪重量,並在2021季節禁止使用FTRS增加了飛輪重量。在其他形式的賽車中,增加後輪和飛輪組件的重量將是一種障礙,但是在扁平賽道中,它極大地改善了泥土上拐角出口的牽引力和可控制的動力傳遞。 這將我們帶入了2022年的規則變化。 “僅種族”發動機(FTR750)將限制為11,500 rpm,並通過船尾供應的限制板限制為32毫米的油門開口,這是一種在油門車身開口處說洗衣機的奇特方式。 So if you are playing along at home, here’s a list of rule changes that negatively affect FTRs in the last six months: 330-pound minimum weight as opposed to 310 for the rest of the field, 35-pound max rear wheel weight as opposed to 40 pounds for the rest of the field, no added flywheel weight, 11,500 rpm max and a 32 mm throttle body restriction. 您可能會認為印第安人在2021年下半年仍然占主導地位,即使增加了總體重量,飛輪和後輪重量減輕,而且您是正確的。另外,誠然,11,500 rpm的限制只會使FTR750損失約500 rpm。但是,褲子的真正踢是通過限制板的32毫米節氣門限制。 因為他們必須使用經批准的32毫米洗衣機,所以團隊不能將新的油門屍體或環氧樹脂重新鑄造為平穩,表現良好的32毫米單元。根據頂級Supertwins球隊之一的成員的說法,這將使他們花費大約25馬力。這將是馬力高度的英里軌道上最明顯的。 近年來,沒有其他製造商投資於美國平坦的軌道。那麼,通過新規則限制對印度人進行懲罰是正確的嗎?帕特里克·加文(Patrick Garvin)的照片。 我的兩分錢 自從2017年將船尾系列帶入船尾系列以來,可以肯定地說,與任何其他製造商相比,印度人在這項運動中投入了更多的時間,發展和金錢。此外,他們還支付了最高的應急資金。根據船尾的應急數字,在過去的三年中,印度人已經支付了近100萬美元的應急資金。為了讓您了解如何堆疊,Yamaha以80,000美元的價格排名第二。即使是S&S週期的支出也超過了所有其他OEM,還支付了15萬美元。 因此,懲罰那些努力進一步促進這項運動的人們似乎有些適得其反。與其對否定多年發展時間和金錢的印度FTR施加限制,為什麼不允許其他團隊的優勢呢?與其增加FTR的重量,不如減輕其他品牌的重量。為什麼不擴大其他品牌的限制,而是讓它們更具位移或更多的電子優勢呢?給其他品牌有機會以優勢開發自行車,而不是奪走印度團隊努力建立的東西。 在您推出與其他品牌的生產引擎相比,FTR是“賽車引擎”的事實之前,我要這麼說:唯一將其他品牌作為“生產”機器的東西是他們使用庫存引擎案例的事實。其他一切都從生產部分開始。例如,船尾的Harley-Davidson XG750使用的是四面Vance&Hines頭,它比庫存的XG750頭更靠近鈴木Hayabusa氣缸蓋。 不要誤會我的意思,我很想看到一個帶有五個或六個不同品牌的超級雙胞胎網格,但不能以阻止一個團隊的發展而不是鼓勵他人的發展。
That brings us to the 2022 rule changes. The "race only" engines (FTR750s) will be limited to 11,500 rpm and will be restricted to 32 mm throttle body openings via an AFT-supplied restrictor plate, which is a fancy way of saying a washer in the throttle body opening. So if you are playing along at home, here’s a list of rule changes that negatively affect FTRs in the last six months: 330-pound minimum weight as opposed to 310 for the rest of the field, 35-pound max rear wheel weight as opposed to 40 pounds for the rest of the field, no added flywheel weight, 11,500 rpm max and a 32 mm throttle body restriction.
You might be thinking that the Indians were still dominant in the second half of 2021, even with the added overall weight and reduced flywheel and rear wheel weights, and you’d be correct. Plus, admittedly, the 11,500 rpm limit is only going to cost the FTR750s about 500 rpm. But the real kick in the pants is the 32 mm throttle body restriction via the restrictor plate.
Because they have to use the approved 32 mm washer, teams can't re-cast new throttle bodies or epoxy their current units into smooth, well performing, 32 mm units. According to a member of one of the top SuperTwins teams, this is going to cost them roughly 25 horsepower. That will be most apparent on mile tracks where horsepower is at a premium.
My two cents
Since taking the AFT series by storm in 2017, it's safe to say that Indian has put more time, development and money into the sport than any other manufacturer. In addition, they have paid out the most contingency dollars. According to AFT's contingency numbers, over the last three years Indian has paid out almost $1 million in contingency money. To give you an idea of how that stacks up, Yamaha was second with $80,000. Even S&S Cycles has paid out more than all the other OEMs, with $150,000 paid out.
So it seems a bit counterproductive to penalize the folks who have worked the hardest to further the sport. Instead of putting restrictions on the Indian FTR that negate years of development time and money, why not allow the other teams advantages? Instead of adding weight to the FTRs, allow reduced weight for other brands. Instead of squeezing down the Indian throttle body, why not expand the limits for the other brands, allow them more displacement or more electronic advantages? Give the other brands the opportunity to develop their bikes with advantages rather than take away what the Indian team has worked so hard to build.
And before you roll out the fact that the FTR is a "race engine" compared to the other brands' production engines, let me say this: The only thing that qualifies the other brands as "production" machines is the fact that they use stock engine cases. Everything else is light years from a production part. For instance, Harley-Davidson XG750s in AFT use a four-valve Vance & Hines head that is closer to a Suzuki Hayabusa cylinder head than a stock XG750 head.
Don’t get me wrong, I'd love to see a Super Twins grid with five or six different brands, but not at the expense of holding back the development of one team instead of encouraging the development of others.
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