The Melvin chain tensioner bolts to the frame where the derailleur would normally be to accommodate the use of a one speed rear wheel on bikes with vertical dropouts.
Spacers on the mount can be rearranged to place the pulley wheels under the cog. The top pulley is designed with side to side float to fine tune the chain line. Only the Paul Components Melvin uses two pulleys, providing the most chain wrap.
These pulleys are made of aluminum for greater durability, and sealed bearings reduce drag and provide lateral float for a closer alignment with the cog.
The Melvin allows two front chain rings to be used. Because two pulleys are used, two chain rings with a maximum difference of twenty teeth can be used up front. With a little practice, a finger and a delicate heel make a fine front derailleur.
- Installation instructions
- Paul logo sticker
|Chain wrap|| 20 teeth|
|Largest rear cog|| 20 teeth|
|Material|| 6061 Aluminum|