quick question.
might anyone be able to tell me the diameters of both the front and rear brakes of a 2007 Jaguar XK base model with 20inch senta rims? i believe they may be between 13-14 inches but cant be forsure since rims are on the vehicle.
what might be the largest rotors i could purchase other then the stock??

thanks for any and all help guys, much appreciated.

DAG

 

Can't help ya with rim stuff, but here is what i have on rotor size for 2007.

Base XK
Front: 326mm/12.83"
Rear: 326mm/12.83"

XKR
Front: 355mm/13.98"
Rear: 326mm/12.83"

Alcon Option
Front: 400mm/15.75"
Rear: 350mm/13.78"

Vince

 

You rock Vince. Much obliged!!
Happy holidays

 

dag82,

Vince is correct as to rotor size, but I think Jaguar first offered the Alcon brake option in 2008. That option included Brembo 6-piston front calipers with cast raised R logo, 4-piston rear calipers, and 20" wheels (Cremona for 2008 and Selena for 2009). Here's a close-up of my 2009:


I'm not sure if these larger Brembo calipers will work with your 20" Senta wheels, as the f/r offsets might not be the same as my 20" Selena wheels. But your 20" Sentas will probably work with your existing calipers and larger aftermarket rotors. Let us know what you ultimately decide to do.

Stuart

 

Depending on what you are planning, it might be worth noting this:

BremboŽ and AlconŽ calipers and discs provide higher-performance braking using the existing hydraulic braking system.

The brakes are installed to the vehicle using unique vertical links, hubs, hydraulic hoses and disc shields.

Due to the use of fixed calipers in place of the standard floating caliper, certain lateral dimensions on the vertical link and hub are critical to achieve correct clearance and operation of the brakes. Therefore special vertical links and hubs set within a certain tolerance are installed with high-performance brakes.