915: 1st gears with mainshaft

• High grade fine-grained 9310 VAR material
• CNC-machined
• Formula One tooth profile
• Shot-peened
• REM-polished

*Slide-on 1st gear for quick change of ratio if needed. Motorsport tested and proven with practical use for road-race/street cars. Give your 915 gear box the strongest mainshaft and gears with the ability to quick-change 1st gear ratios.



  • Transaxle Type: 915