Lotus 111 Uprights - Street & Track

We have kicked off production of our street uprights.  One of our goals this year is to look for more obscure ways to save unsprung weight on the Elise/Exige.  Unsprung weight savings have been a major focus of ours for over 20years.  Our ULTRAdiscs and RS343 are the lightest components of their type for these cars.  The uprights are the next opportunity that we need to address - at least for street cars.

 These are a derivation of our raceUPRIGHTs.  Our raceUPRIGHTs are a proven solution that we introduced on our first ArtCar (see above) that we campaigned in Lotus Cup.  We saved nearly 9lbs with these uprights.  These allowed us to run the cars even lower while leaving the suspension geometry intact.  You can lower these cars too much and ruin the handling of the car.  Our raceUPRIGHTs allow the car to run low so we can get the benefit of a low CG and better aero.  Another cool advantage is that our uprights allow you to bolt on the front 2 piston calipers onto the rear.  We did just that plus our 308BBK in the ArtCar and could out brake 211s!

Street cars don't need to run that low.  But unsprung weight savings is still a nice thing to have as there are really no reliability issues that you will face.  Of course durability can be an issue if you attempt to go too light - we don't want it to break just as you cross the finish line!  😉

We are producing our first set for testing.  Ours will also allow you to install the 2 piston caliper at the rear - though we may ultimately offer this as an option since it will add additional weight to the uprights.  I think that most street cars run perfectly fine with the stock rear calipers - assuming good pads are installed.  This picture below is the machining that is underway.  We will be testing them later this Winter.

The ArtCar2 above also runs the raceUPRIGHTs