SP stands for Small but Powerful! Go where ever you want day or night with these lightweight and bombproof dynamo hubs.
Shutter Precision (SP) was founded in the classic spirit of a “garage based” Silicon Valley style start-up. Its founders are young engineers with substantial expertise designing and producing the sophisticated micro motors that articulate fragile shutters in high-end cameras. Their adventure into the bicycle field began in 2007 with a vision to bringing their expertise to crafting the most efficient and technologically advanced hub dynamos for powering lighting systems and electronic devices on bicycles. When they initially gathered their collective personal savings together with loans from family, friends and friends of friends, they had not anticipated that their journey of financial uncertainty, toil and sweat would also include (sporadic) ulcers.
All SP hub dynamos come with a full two year limited warranty against manufacturer defect beginning from the date of purchase. SP stands behind their products and will repair or replace free of charge products found to be defective. High-mileage users are particularly valued customers and hubs that have not suffered a defect, but simply have worn bearings due to extensive use, can be sent back to the manufacturer for new bearings free of charge within the two year warranty period (customer pays for two way postage). Similar service after the warranty period is available for a reasonable USD 30.00 (the amount includes the return postage). This is the best service policy we are aware of in the industry. Please note that SP hub dynamos are not user serviceable.