freebird

iTrader: (3)

Don't listen to just everyone! If your running on the carpet especially the new black CRC; the solid aluminum is good. I can't give you a recommendation to asphalt as Ive not run mine on it at all. My self I did the solid main chassis and left the carbon rear pod alone. Its doing wonderful.

MD

iTrader: (136)

What brand spur gears fit the X1?

sbd

Anything fitting 1/12 axcel.

Tandum4056

iTrader: (141)

I am most likely getting the solid aluminum chassis. I run on super high bite black CRC carpet. My T4'17 came with the flex aluminum chassis and the car felt much better once i changed it over to the solid aluminum chassis.

Does anyone know when Xray is releasing the aluminum chassis for the 2017 X1? I checked the part number and it is different from the 2016 X1.

Thanks!

sbd

Just a note: I believe the flex alu chassis is just marketing gimmick. The only point of the cuts (as compared to the original alu plate) is to reduce weight such that the car is not too much over the ETS min limit of 1050 grams with standard shorty batt. The 2017 plate must be a different p# with the only difference been the holes for the shock holder in different place ....

Dan

iTrader: (75)

I'm running the 15/16 flex chassis on my '17 at the moment since I had it lying around. The only thing I carried over was the 16' front carbon shock plate. The geometry of the shock stays the same but your body posts will change locations (back to 15/16 positioning). X-ray most likely did this just so people would have to buy new lower plates if upgrading to the '17 and for the sake of saying they updated something. Keep in mind the '17 has angled side links option too, but does not bother me.

I have the full aluminum chassis too which I ran exclusively on carpet before my '17. I can't tell a big difference between the full and flex although I only run on CRC gray carpet. However, both aluminum chassis are a huge difference over carbon.

TheYellowDart

iTrader: (1)

Anyone have any recommendations on tires? I am running on the crc black carpet. I have the crc tires that are precluded but they fit SUPER tight. Also, does everyone glue their tires on the crc black carpet? That's what my raceway says to do

svturtle

iTrader: (2)

Looking at getting into the F1 scene and have come across the Xray Xy370700 kit for rather cheap.
This is the original version?
The shop also has what I think is the newer version, Xy370701 2016 spec.
As a first time F1 driver is there any reason why I wouldn't go for the cheaper/superseeded one?

Shaun B22

iTrader: (3)

No reason at all....some of the guys at my club prefer the 15 spec and dominate with it. Which ever one you decide I'm sure you'll be happy. Welcome to F1!

ByteStream

iTrader: (2)

It's not. I've run all three chassis and there is a difference in all of them. The largest difference is between carbon and aluminum. Then there is a smaller difference between full and flex aluminum. Full Aluminum dumbs the car down quite a bit (easier to drive but much less responsive). Depending on driving style and setup one may feel better than the other on a given layout/traction level.

All the major/mid-major races spec the Pit 571/572 combo which is the same as CRC and TCS tires (rebranded Pit 571/572). They are really good tires in terms of grip and durability and I would not look at anything else. There are a couple of setups that you can run where you don't need to glue them (inline, over-cambered and over-castored) but 95%+ setups require glueing at least the bead where the sidewall meets the tread (all I did at IIC this year). If the car still feels tippy or too edgy, then stiffening the sidewall with more glue will help sort that out.

Forgot to add - I prefer the tight fit of CRC rims (they do loosen over time a slight bit). The front rims especially because they don't crack at the inside bearing holder like others do.

Dan

iTrader: (75)

+1. good advice

svturtle

iTrader: (2)

Cheers mate, went ahead and ordered the 15 spec, can upgrade later if I wish, which is a bonus.

AlBundy

iTrader: (2)

If the pit 571/572 tires are the same as the crc and tamiya then why don't the Midwest uf1 rules allow them as the clearly state that only crc and tamiya are allowed?

Also would anyone be able to comment on how well the protoform 15 body fits the X1?

ByteStream

iTrader: (2)

Pit Shimzu tires have no markings on them (for any compound) so it would be near impossible for a race organizer to tell what tires your on (legal or not). The CRC and TCS versions have raised lettering on the sidewall allowing a quick visual check of the tire.

BTW .. which UF1 Midwest rules are you referring to? Do you have a link? The last version I saw was updated in 2014 and still had 21.5 motors and open tires listed.

AlBundy

iTrader: (2)

It was the 21.5 based set of rules, I will say that it is a shame that uf1 can't update the site so new people to the sport have clear up to date info. If they want to attract new racers then at least give the impression that this is a current class. Just my .02.

I am new to on road racing and sometimes I feel like the rules favor certain vendors.