PART NUMBER: 61-3469
The ULTRAGRAM is Konig s NEWEST Flow Formed wheel and is the result of the most technology they ve ever put into any wheel! Konig has taken every ounce of feedback from all of their high level race programs to develop a wheel that will offer the most amount of longevity and rigidity all while offering an amazing weight savings. The ULTRAGRAM has 7-spoke, motorsport inspired design that is built with flow forming technology.
The Ultragram has a knurl bead seat to prevent tire slippage for high-torque motorsports applications.
Made to newest standard 550kg load rating (1213 pounds each).
Bolt pattern: 4x100
Center bore: 73.1mm
Weight: ~13.3 lbs
Takes optional 73mm hub ring available separately on this site.
1990-2005 Miata brake clearance notes: - Clears factory brakes and factory optional sport package brakes - Wilwood 11" big brake kit: clears without spacer - Goodwin Racing 11.75" V5 big brake kit: clears without spacer - StopTech 11" big brake kit: clears without spacer
With any wheel Konig develops with Flow Forming Technology, the end result is stronger, lighter and offers greater elongation and shock resistance than a traditional cast design.
Note we STRONGLY recommend our numerous upgraded lug choices with any of our new wheels, stock lugs too short and fat and will scratch these wheels. Unlike the short and fat stock lugs that will result in scratching new wheels, all our replacement lugs have the socket tool bottom on the lug rather than the wheel surface, and are longer for more engagement with stud surface so they also stay tighter.
Will NOT clear stock suspension, need coilovers with 2.5 inch diameter springs or narrower and expect may still rub at full lock (which is not a real issue since full lock is only possible at parking lot speeds), 3mm spacers can be added if you are running so much camber that you rub inside control arms, etc.
Tire Size breakdown:
-195/50 and 205/50: not recommended
-225/45: Tires fit NB fenders with no mods needed given 1.5 or better negative camber, fits NA with slightly rolled fenders and that negative camber
- 225/50: require rolling and pulling fenders, removing liners on NA, NB only requires slight roll.
-235/50 Toyo R888: requires rolling and pulling on NA, roll only on NB, will rub top of tire at full compression.
-275/35 require rolling and pulling, removing liners on NA, flat roll on NB. 20-30mm spacer recommended to fill aftermarket flares.
ACTUAL PICTURES of Miata 15x9 Fitment Below Taken at Good-Win Racing of the first shipment. Confirmed they weigh right about 13 pounds with cap, hair under without cap.