SADEV 14/33 Gear Ratio for ST75-14 Sequential Gearbox

Why lacking a SADEV 14/33 ratio could hold back your performance?

In competitive racing, every millisecond counts. Ignoring the importance of precise gearing means accepting lost ground right from the starting line. Without the specific 14/33 1st gear for the ST75-14, your engine may struggle to stay within its optimal power band, causing debilitating RPM drops during upshifts.

Essential mechanical reliability for your sequential gearbox

Using uncertified or worn components in a SADEV gearbox is the fastest way to a costly mechanical failure. By not choosing this genuine SADEV gear set, you expose your transmission to parasitic vibrations and premature dog ring wear. The technical customization of your gearbox should never involve compromises.

Answering your technical concerns

• Is it compatible with all ST75 units? This ratio is specifically machined for the ST75-14 model, ensuring a perfect fit without complex adjustments.
• Why choose the 14/33 ratio? It provides the ideal balance for tight circuits or rally stages requiring maximum traction and sharp acceleration.
• Where can I have my SADEV gear installed? Our expert technicians provide installation and maintenance for premium sports vehicles at our workshop in Northern France, near Lille and Valenciennes.

Optimiz Access Expertise: More than just a spare part

Since 2010, Optimiz Access has supported sports vehicle enthusiasts (Renault Sport, Audi, VW, Porsche...) in their quest for perfection. Failing to order from a recognized specialist means risking a lack of technical support. We master the specificities of racing gearboxes and offer fast worldwide shipping or professional installation in our Hauts-de-France facilities.

Note: You can find all complementary products required for assembly (seals, gear oils, bearings) at the bottom of this product page.