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105 ST-R7170 Di2 Shift/Brake Lever with BR-R7170 Disc Brake Caliper
105 ST-R7170-LE Di2 Shift/Brake Lever with BR-R7170 Hydraulic Disc Brake Caliper - Front, 2x, Flat Mount with Fork Adaptor, Black
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Shimano
The Shimano 105 ST-R7170 Di2 Shift/Brake lever features Di2 electronic shifting for precise, intuitive gear changes to even more riders. The 105 BR-R7170 caliper features the Shimano Flat Mount System and its low-profile design that is ideal for road bikes.
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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.
I’ve had several cruxes, including an S works crux and for the money this is quite the value. I did a gravel race and cyclocross Race on my new DSW crux after cracking my S works frame in a Bike Crash. I was really impressed. Sure it’s about a pound heavier, but it has 90% of the performance. Great price point and probably more robust for CX.
Fair price on tires, quick delivery from Sierra Bicycle Supply, tires and new tubes on the bike and working well. I'm happy.
