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7

Can I calculate (approximately) how much air pressure is lost by measuring the hose length and diameter? No, you cannot tell how much pressure is lost based on the size of the hose. This is not because there is not enough information to tell but because the hose is irrelevant. You seem to be under the impression that there is some total amount of ...


5

Intervals. Lots of intervals. I had a similar problem when training for the Seattle-To-Vancouver ride while living in southern Michigan. We have hills up north and I took a few trips there before the ride, but it really wasn't enough to reduce the suck. This year, I've taken to doing tons of intervals with a regimented training program. In order to keep ...


4

I thought this was an interesting question, so first of all, +1. First off, the sloping tube (your second image) is known in cycling parlance as a compact frame. I found an article on the Giant web site about the advantages of a compact frame. When I say "advantages" - this is Giant's word not mine! The full article is here, but to summarise it: the ...


1

Although The Netherlands is pretty flat (highest point 321m in southern Limburg), there certainly are some hills, even closer to Amsterdam: The Holterberg is a short, but decently steep climb in the Sallandseheuvelrug, which is a nice area to cycle in anyways. The Veluwe nature area is relatively hilly, with the Posbank hill having a steep climb from the ...


1

Forget the slime, thornproof tubes, and tire liners. IMO, the best puncture protection for under $40 are Vittoria Randonneurs. I've had excellent luck with them. I had a pair of Gatorskins before the Randonneurs, and trust me, Kevlar belts do not work as well. Because the Kevlar is a woven material, very sharp objects can penetrate between the Kevlar ...


1

If you're that concerned with lost air and exact pressures, get Schrader valves on your bike and buy a shock pump like the Scott Shock Pump Pro 600, which lets you close the valve before disconnecting the hose. Other than that - if you're not far heavier than 100kg, it doesn't really matter whether you have six or eight or twelve bar in the tubes when it ...


1

I'm not sure how much of this is marketing, but I believe the main reason is comfort. The longer seat post has more flex to absorb bumps and the seat stays being lower gives the rear triangle more flex too. Another advantage is a lower stand-over height for bikes with high bottom brackets.



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