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rojo-1 mikelevy's article
Oct 14, 2020 at 4:23
Oct 14, 2020
First Look: Specialized's New Carbon Stumpjumper Ditches the Horst Link
Whether you like Specialized or not, they're setting the bar for other manufacturers to compete with, so when they raise the bar, it exciting to see because it pushes everyone else that little bit harder to produce better bikes.
rojo-1 edspratt's article
Sep 30, 2020 at 2:49
Sep 30, 2020
Bike Check: Charles Murray's Pivot Firebird 29
@Richt2000: I don't know the answer, that's just my theory. He has the option of using a large frame, so the question is, why does he prefer a medium frame, and long stem compared to a large frame and a normal length stem? P.S. I massively prefer to downsize on bikes, however I am not a racer.
rojo-1 edspratt's article
Sep 29, 2020 at 6:52
Sep 29, 2020
Bike Check: Charles Murray's Pivot Firebird 29
I agree. It's all about weight distribution. Making the front centre longer (i.e. size large) but keeping the CS the same will result in a rearwards weight distribution, making it harder to weight the front tyre. If you make the CS and front centre longer together then you can keep the weight distribution the same. The clue here is that he's using a really long stem, which means that he's finding benefits in applying a more forwards weight distribution. I wonder how he would feel about using a longer CS and larger frame if the parts were available for him to test?
rojo-1 pinkbikeoriginals's article
Sep 21, 2020 at 13:10
Sep 21, 2020
Head-to-Head POV Video: Grim Donut VS Meta AM 29
@alexmander: I've seen it done with in house software. You go through each video, add markers where the car crosses certain points on the track e.g. touches a kerb, change in tarmac texture, crosses a line etc. It then knows to sync the two videos at these points and can work out the time delta at those exact moments. It then re-renders, getting the videos to match up at these markers. You can bypass adding markers if you have GPS data (which teams don't have for competitors cars, hence the markers...) as you already know the distance along the track. I heard someone mention an off the shelf product that can do this, but can't for the life of me remember what it was.
rojo-1 pinkbikeoriginals's article
Sep 21, 2020 at 8:00
Sep 21, 2020
Head-to-Head POV Video: Grim Donut VS Meta AM 29
There is a technique used by motorsports teams where you can re-render the video as distance along the track, rather than time. This allows you to display both bikes at the same point in the track, and display the time delta between them. It's a much better way to see exactly where they are making up/losing time.
rojo-1 dan-roberts's article
Sep 1, 2020 at 10:08
Sep 1, 2020
Privateer Adds the E-161 to Their Lineup
@mountainsofsussex: Wiki: The power can range from under 7.5 kW (10 hp) for the smallest of lifts, to more than 750 kW (1000 hp) for a long, swift, detachable eight-seat up a steep slope. You've quoted the most powerful chairlift available, which still only consumes the power of two Tesla P90D. I'd say that's pretty damn efficient considering it would be delivering at least 480 bikers per hour. That would be at least 30 large shuttle bus runs per hour, i.e. one bus every two minutes!
rojo-1 dan-roberts's article
Sep 1, 2020 at 2:28
Sep 1, 2020
Privateer Adds the E-161 to Their Lineup
@nordland071285: They're called chairlifts, which run on electric motors. And yes, I would love a chairlift in all the places that I ride, but it isn't going to happen!
rojo-1 mikelevy's article
Aug 25, 2020 at 9:37
Aug 25, 2020
Field Test: 9 XC Bikes & the Grim Donut VS the Efficiency Test
Grim Donut should really be running the XC control tyres to make things fair.
rojo-1 mikekazimer's article
Aug 24, 2020 at 20:22
Aug 24, 2020
Review: Privateer 161 - The Budget Priced Brute
@dan-roberts: Can't wait to read your article. Thanks!
rojo-1 bicyclerider's article
Aug 3, 2020 at 7:06
Aug 3, 2020
Building The World's Lightest 29er DH Bike With Dangerholm
Just do loads of timed DH laps with bolt on weights and prove with the clock which is fastest...
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