Ichiban Engineering is proud to offer the Speedtek Auto Racing R Series Dog Engagement Gearset, a groundbreaking upgrade in transmission performance and reliability. Designed and manufactured by Speedtek with uncompromising precision, this gearset is now available through Ichiban for customers seeking the very best in motorsport engineering.
 
R Series Dog Engagement Gearset – by Speedtek Auto Racing
 
The R Series Dog Engagement Gearset represents a major step forward in transmission performance and reliability. Built from forged billet materials and machined to exact tolerances, this kit ensures durability, strength, and consistent performance under extreme conditions.
 
Specifications
 
Spline Type:
 
Standard – No clutch change required, easy installation.
26 Spline GM – Requires clutch spline change; larger input shaft designed for high-torque engines.
 
Gear Ratios:
 
1st: 2.701
2nd: 1.614
3rd: 1.215
4th: 1.000 (Input Shaft / Drive Gear)
Optional 5th Gear Upgrade: 0.85 (Short) or 0.70 (Long)
 
Engineering Highlights
 
Large inner K-Series needle bearings in 2nd, 3rd & 5th gears (custom bearings supplied in kit, not available off-the-shelf).
Dedicated oil cooling feed ports and oil reliefs for each gear ensure proper lubrication.
Advanced manufacturing allows precision and complexity not previously possible in R Series dog sets.
 
The result is improved lubrication, thermal management, and long-term durability—making this gearset ideal for high-power builds and competitive motorsport use.
 
Pre-Order Information

Pre-orders are now available through Ichiban. Please note: Strictly no refunds on pre-orders. Speedtek is producing these at the fastest pace possible to meet demand.

* Price Includes shipping *