The simple tension seeker (STS) by DMR Bikes should not really be called a chain tensioner , but rather a slack-remover. It's an incredibly simple solution for those looking to convert a bike with vertical dropouts for single speed use. DMR is a UK-based company that specializes in downhill, freeride, and dirt jump chain devices, and the STS reflects this design experience in this burly device. Installation is a 5-minute job (assuming you have already replaced your cassette with a cog, and shortened your chain as much as possible). Simply remove the skewer nut and slide the black aluminum mounting bracket onto the dropout. Then loosely bolt the stainless steel arm to the bracket and the derailleur hanger with two 5mm bolts. Replace the skewer nut. Rotate the cranks until the chain is at its tightest. (Very few chainrings and cogs are perfectly round.) Lift up on the arm so that the red pulley pushes the chain upward, removing the slack, and tighten the two 5mm bolts. That...
We first posted images of this film used Masi from Breaking Away back when I shot it while on display at the North American Handmade Bicycle Show a couple of months ago. At the show it was stated to be one of three Masi’s used in the film, and one of two in the collection of Chris Brown, a friend of the screenwriter. I’ve since received more information on it and the other bikes in the film from Tom Schwoegler, the film’s technical advisor and bicycle mechanic. “At the conclusion of the film one of the two Masi’s that were purchased was given to Steve Tesich (the screenwriter) and the other returned with the production company in Los Angeles. This 2nd bike was purchased by Dennis Christopher and can be seen in the October 12/19, 2012 copy of Entertainment Weekly. There was a spare fork purchased from Masi that we had to bend for the scenes after the pump insertion. But whoever stated that there were three Masi’s built for the film is incorrect. The “third...
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