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View Full Version : losi xxx-bk2 & xxx-cr

tobbe
23-10-2006, 06:09 PM
What is the different between Losi XXX-BK2 and the new XXX-CR?
Lew
23-10-2006, 10:02 PM
From the Racer mag it says

New ball joints - hex in top for easy installation
new rear hubs - Lots of adjustment
New rear tower - More holes for camber link and rear wing
New Gear cover - more durable the old lexan version
New front shock tower - fourth hole added for shock mounting
New material - EA3 plastic used throughout

And aparently theres changes to the gearing end.

Lew :)
_sleigh_
24-10-2006, 07:14 AM
All the following are NEW or atleast different to the BK2.

Front Shock tower
Steering rack
Rear wishbones
Rear Hubs
Driveshafts
Gearbox
Motorplate
Gear cover
Diff
Rear pivot block
"T" plate
Rear Shock tower
Bodyshell
Wing set
Battery strap
Ball Studs
Ball Cups

Most chassis and suspension parts are now made in the new AE3 material.

If anyone is considering upgrading a BK2 to a CR, I'd seriously check out how much it will all cost, and you'll see a new kit is not much more.
Chris Doughty
24-10-2006, 08:59 AM
AE3


? A E 3 phil? is there something you are not tellin us? :P
tobbe
24-10-2006, 11:35 AM
Okey thanks so wich one is better? AE B4 or the Losi XXX-CR? I cannot choose wich one I should buy.
_sleigh_
24-10-2006, 12:44 PM
? A E 3 phil? is there something you are not tellin us? :P

Dooh :rolleyes:

must have had something else on my mind :p
jim76
24-10-2006, 03:21 PM
Okey thanks so wich one is better? AE B4 or the Losi XXX-CR? I cannot choose wich one I should buy.

that is something that others can't really answer for you as some people will prefer each model.
Best way is to try them yourself if you have friends who race them and see which one suits you best.
Lew
24-10-2006, 08:18 PM
that is something that others can't really answer for you as some people will prefer each model.
Best way is to try them yourself if you have friends who race them and see which one suits you best.

I say the B4, It's drivable as soon as you build it :o
tobbe
25-10-2006, 12:44 PM
I guess I will get the B4. My friend has a T4 and another one has a B2. Both are good cars. But thanks, for your answers. Great forum!:)
PaulRotheram
25-10-2006, 12:53 PM
I've just went back to a B4 but im having a real hard time getting up to laptimes and speed of my Cr prototype. Had a lil test session earlier today and it went well.. but i've still some doubts. I shall give the car a while longer before back to back testing.
stefke
25-10-2006, 01:38 PM
I was in the marked for a fresh car for next season. I tested my B4 back to back with my mate's CR the whole day and came to the conclusion that it was easier to drive consistent fast laptimes with the CR, so after years of driving RC10's, I ordered a Losi. Could be just me though.
XXXCRRacer
21-11-2006, 03:39 AM
The Bk2 has a higher gear ratio then the CR.

Bk2 is around 2:61 gear ratio

CR is 2:43 gear ratio