The SS is a new model this year from chain guide giants E.thirteen. It's very similar in design to the old SRS although it comes with a new look supercharger bashplate matched with a steel backplate, making it a bargain price at only £89.99.You might think this would make for a weighty chain device, but the backplate is made from a thin sheet with curved lips making it torsionally very stiff and keeps the weight at just over 450g.
It also has a very shiny chrome finish, with the guides and bashplate available in a black or white colourway. The SS is available in both ISCG (old) or ISCG '05, the latter coming with an adapter to allow bb mounting.
After some initial fitting confusion (I was trying to fit the chainring on the wrong way round) the setup was very simple and the device fits my frame so much better than the MRP I had been using previously because the small top guide fits under the swingarm allowing me to mount the bottom roller higher, which gives ample ground clearance.
In riding the guide works faultlessly. The chain is held on very securely and runs smoothly on the jockey wheel. It's been pedalled hard through rough rooty sections and has given me that all important ground clearance.
There is no sign of any rubbing from shoes on the bashplate, which I have experienced with other examples, usually with embossed logos, and my bike is now even lighter too. You couldn't ask for more from a chain device.
Reviewed by Mark Smedley
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