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DMR

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Blade Direct Mount Chainring
Blade Direct Mount Chainring - 30T, Boost, 12-Speed
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DMR
The Blade chainring is now 10, 11 and 12 speed compatible. Manufactured from stiff 4mm wide 7075-T6 Aluminum maintaining direct power transfer, this MTB direct mount chainring has a wide/narrow tooth design for ultimate chain retention and when combined with a clutch mech, no chain device is needed.
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Perfect part for my level SL, very easy to install with instructions. Delivery was fast, Justin time.
I used to have an Edge 540 Solar which was not touch, and it was truly a pain to use. It felt like it was designed to be touch, then last minute added as a non-touch option. But I did like the data screen and the size. The solar charging was minimal, so when my Edge 540 was stolen I opted for the touch version without solar and I couldn't be happier! It has a good battery life, touch works so much better than the button versions, and the lack of a solar frame helps in certain light conditions as the solar frame would provide some glare once in a while. Highly recommend!
Sierra Bicycle Supply responded to my complaint in less than 2 hours and issued a refund for the defective tube.
This indicates to me that they are a good customer-oriented organization.
ORIGINAL COMPLAINT:
Both tires and tubes were well packaged and arrived safely. (All Condition Armadillo 700X25 and Standard Presta Valve tube 700X20-28C) I installed them and pumped them up with no problem. The next time I went to ride, the rear tube valve had a substantial leak. Loosening the nut and pressing the release pin resulted in a loud air leak that does not stop when I release the pin. The loud leak appears to stop when the nut is firmly tightened. I don't trust this arrangement.