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Observation and Perspective
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| Ride Stats |
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Distance:
14.55 miles
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Time: 01:21:00
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Max Speed:
31.30 mph
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Avg Speed:
10.78 mph
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Temp:
Min: 38
Avg: 39
Max: 40
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Category: training: general -
solo
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Route:
around the "block"
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Weight:
236
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Altitude Gain:
0 ft
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Avg Power: 0 W
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Calories Burned: 1,350
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Avg HR: 0 bpm
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Terrain: Road: Hills
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Bike: Dahon 32lb-Cadenza Folding
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Club: USA Towpath and Trail Riders association |
| Weather Conditions: Part sun, mild, Windy; SW winds gusting 20-26mph at 12noon; |
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Distance:
9.54 miles
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Time: 00:48:00
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Max Speed:
22.50 mph
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Avg Speed:
11.93 mph
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Temp:
Min: 37
Avg: 38
Max: 40
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Category: training: general -
solo
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Route:
around the "block"
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Weight:
236
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Altitude Gain:
0 ft
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Avg Power: 0 W
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Calories Burned: 850
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Avg HR: 0 bpm
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Terrain: Road: Flat
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Bike: Bianchi 32lb-Castro Valley Road
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Club: Bianchi Riders Club |
| Weather Conditions: Sunny mid-afternoon; Breezy, Westerly wind gusts to 25mph; |
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A second ride today, this one on the Bianchi; Took the "big" around the block ride, not without mishap.
5.5 miles into the ride, on Canal Road, The front tire was spongy, losing air. I suspect the tube is failing at the shoulder where the "PRESTA" valve is connected to the rubber bladder-just an educated guess. The Presta valve tubes fail there, often. That is the point of a definite weakness in the Presta valve type tubes. I pumped the tire up to about 60 pounds and nursed it home. It was flat again when I pulled into my driveway.
Perhaps the anti-leak compound I use(not the "green stuff") is somewhat corrosive.
In the past, Presta tubes have revealed a bit of corrosion at the point of the stem shoulder. Another consideration is the 2700+ miles on the front tire (Conti.-Ultra Gator skin) has more than a few cuts in the rubber.
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