The Sun Envy-Lite Rim was created to shave some grams in weight off your race bike. Still a double walled design, they come in 60g under its bigger brother courtesy of a narrower profile of 25mm and hence are perfect for running 20 x 1.40 and 20 x 1.60 tyres. These rims do have a suggested rider limit of 80kg and are universally a front or rear rim.