Re Bolt's strides:, he took 41, compared to 44-45 for others in the field.
re: 100m sprinter height. Armchairclimber, Even 400m runners at 6'5" are uncommon. I just want to summarize the arguments (not necessarily yours) to make sure I understand them.
> Bolt's performance is believable because he is a physical outlier.
> He is an outlier because most tall athletes would be vetted into the 400m, and don't run the 100m.
Let's look at 400m runners:
Kirani James, 5' 11" (1.80 m) 146 lbs (66 kg)
LaShawn Merritt 6' 2" (1.88m) 185 lbs (84 kg)
Luguelín Santos: 5' 8" (1.73 m) 134 lbs (61 kg)
Lalonde Gordon 5' 10" (1.79 m) 183 lbs (83 kg)
Chris Brown 1.78 m (5 ft 10 in) 75 kg (165 lb)
Big athletes just don't exist in sprint events. Flat jumpers aren't big. High jumpers are all over, but the taller, the skinnier in general. Even pole falters have the physique of 400m runners; Walker is 6'2", Lavillenie is 5'10"
So are there big athletes in TnF? Yes, decathletes. Heres London's results:
100m is the first event. top 10:
1 1 3 3214 Ashton EATON USAUSA 10.35 OB +0.4 1011
6' 1" (1.85 m) 185 lbs (84 kg)
2 2 3 3220 Trey HARDEE USAUSA 10.42 SB +0.4 994
6' 5" (1.96 m) 212 lbs (96 kg)
3 3 3 1301 Damian WARNER CANCAN 10.48 SB +0.4 980
6' 0" (1.84 m) 183 lbs (83 kg)
4 4 3 3132 Oleksiy KASYANOV UKRUKR 10.56 SB +0.4 961
Height, 191 cm, Weight, 82 kg.
5 5 3 1898 Rico FREIMUTH GERGER 10.65 +0.4 940
6' 5" (1.96 m) 203 lbs (92 kg)
6 6 3 1223 Luiz Alberto DE ARAÚJO BRABRA 10.70 SB +0.4 929
6' 2" (1.88 m) 194 lbs (88 kg)
7 1 4 1799 Daniel AWDE GBRGBR 10.71 PB -0.7 926
6' 0" (1.82 m) 181 lbs (82 kg)
8 7 3 1164 Eduard MIKHAN BLRBLR 10.74 +0.4 919
196 cm (6' 5"); Weight: 86 kg (190 lbs)
9 2 4 2834 Sergey SVIRIDOV RUSRUS 10.78 PB -0.7 910
6' 4" (1.92 m) 187 lbs (85 kg)
10 3 4 1469 Yordani GARCÍA CUBCUB 10.80 SB -0.7 906
6' 5" 180 lb.
Can't compare Bolt to these guys on time, (but just to make it obvious, he is .5-1.21 seconds ahead; ~5-21% better...) but...
Each of these athletes scored more in another event, except Damien Warner (shortest in the top 10). Most scored more points in the Long jump. Only Damien Warner and Sviridov were worse in the 110m hurdles.
400m results (just to compare):
1 1223 Luiz Alberto DE ARAÚJO BRABRA 48.25 PB 897
1 3220 Trey HARDEE USAUSA 48.11 SB 904
2 1164 Eduard MIKHAN BLRBLR 48.42 SB 889
3 1469 Yordani GARCÍA CUBCUB 48.76 SB 873
1 3214 Ashton EATON USAUSA 46.90 963
2 1898 Rico FREIMUTH GERGER 48.06 906
3 1301 Damian WARNER CANCAN 48.20 PB 899
4 3132 Oleksiy KASYANOV UKRUKR 48.44 888
6 2834 Sergey SVIRIDOV RUSRUS 48.91 866
1799 Daniel AWDE GBRGBR DNS 0
full summary
http://www.iaaf.org/results/olympic-games/2012/the-xxx-olympic-games-4871/men/decathlon/1500-metres/points
So what do we learn?
In Bolt's event, he is an extreme outlier with regards to his build.
Among Bolt's build, almost all were better at something else.
There is no pattern to explain Bolt's performance at 100m.
Bolt is the outlier, not his size. The defense that the best 100m runner believable because of exceptional size doesn't hold up. Big sprinters just don't happen.
So, if his build is not the advantage, what is it? What Bolt doing to augment the natural limits of bigger athletes? What is Bolt doing to bring his big body beyond it's natural?
Gold medals happen at the edge of the bell curve, but there is no explanation for how Bolt got there, except doping.