Complete Motorcycle Race Engines for:  Micro Sprint, Mini Sprint, TQ Midget and Motorcycle Roadrace. All NPS Race Engines are designed and built for your specific racing application. We build engines that have the best balance of performance & durability to hold up to your racing conditions. 20+ years of experience has allowed NPS to stay in the forefront of Technology, Performance and Quality in 600, 750 and 1000cc engine classes for Motorcycle Racing and Micro/Mini Sprint Engine. We can build stock bore & stroke configurations as well as overbore stroker engines. Every internal engine part is checked and spec’d out to work in the high demands of racing. Our custom pistons and cams are a few examples of parts you will only find at NPS Inc.    New Gen. 2013-up  ZX6R 636 © 2017 NPS Inc. All rights reserved.