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-   -   The official *all new* Jackass thread (keep it fun) (https://www.bikeforums.net/singlespeed-fixed-gear/710305-official-all-new-jackass-thread-keep-fun.html)

jdgesus 03-19-12 09:00 PM


Originally Posted by carleton (Post 13992228)
this is a race bike.

It's designed that way so that the rider can get very close to the motorcycle for an event called derny racing.

http://elcyclista.com/wp-content/upl.../03/track2.jpg

y u no see troll face mouse pix

McChinken 03-19-12 09:39 PM

https://vimeo.com/37838754

hairnet 03-19-12 11:47 PM


Originally Posted by AEO (Post 13992355)
forget the rod, what's that pneumatic jack like thing attached to the saddle and top tube?

I was asking about that one and the one at the handle bar

jdgesus 03-19-12 11:54 PM

i got it from here.

http://www.pezcyclingnews.com/?pg=fullstory&id=3798

i dont care if its a race bike, i still lol

carleton 03-20-12 12:09 AM

http://elcyclista.com/wp-content/upl.../03/track2.jpg

These bikes are setup this way for 3 reasons:

1) You know how we can go much faster on rollers than we can on the road/track? It's because there is no air resistance. The front wheel is set up (reverse rake fork, 650c) to allow the rider to get as close as possible to guy breaking the wind for him (haha...fart joke).

2) It's easier to pedal super high cadences when you are very close to the bottom bracket. This is why he is on the nose of the saddle. This is also why Japanese Keirin bikes have really upright seat tubes...because they are not allowed to use big gears that modern riders use, so they have to spin super high cadences.

3) It's easier to pedal high cadences when you are upright (hip flexors engage more), but upright isn't aero. That's why you don't see riders riding upright at high speeds it's because the wind will limit their speed. But, this isn't a problem here because the motorcycle driver is STANDING to block the wind.


Also, if you could see the motorcyclists' helmet, you would see that it has some cups off to the side that are open to the back. This is so that he can hear commands from the rider like "Whoa!" and "Allez!" (faster).

http://4.bp.blogspot.com/-Y2RW40P6h5...07_cycling.jpg

hairnet 03-20-12 12:18 AM


Originally Posted by carleton (Post 13993201)
3) It's easier to pedal high cadences when you are upright (hip flexors engage more), but upright isn't aero. That's why you don't see riders riding upright at high speeds it's because the wind will limit their speed. But, this isn't a problem here because the motorcycle driver is STANDING to block the wind.

Really? I always have a harder time spinning down hills on the hoods than in the drops

LesterOfPuppets 03-20-12 12:23 AM


Originally Posted by AEO (Post 13992355)
forget the rod, what's that pneumatic jack like thing attached to the saddle and top tube?

It's basically a turnbuckle screw sort of setup so you can adjust saddle angle/height.

carleton 03-20-12 12:24 AM


Originally Posted by hairnet (Post 13993212)
Really? I always have a harder time spinning down hills on the hoods than in the drops

The hip flexors literally stop working at a certain back angle. To test this next time you are on an indoor trainer, unclip one pedal and sit upright and pedal with the other foot a slow-ish easy cadence with some resistance on the trainer. Now slowly start leaning forward. There will be a point when the hip flexors will start to strain then simply not lift your leg up anymore.

Maybe you are using a different pedal stroke?

hairnet 03-20-12 12:47 AM

I dont have a trainer, but I know what you are talking about from when I mess around with one leg drills. I dont have an explanation, up to around 100, maybe 110, I just feel clunky and it is harder to follow the pedals or increase the cadence if I don't get low.

highonpez 03-20-12 01:56 AM

http://i.imgur.com/3b0S3.jpg
Was looking through some old photo albums and thought this might amuse some of you. This is a cobbled together commuter I was using last fall between bikes. Yes, that's a 27" front wheel with a 700 back. The fork dropouts were too small in front. :)

highonpez 03-20-12 01:58 AM

http://i.imgur.com/3b0S3.jpg
Was looking through some old photo albums and thought this might amuse some of you. This is a cobbled together commuter I was using last fall between bikes. Yes, that's a 27" front wheel with a 700 back. The fork dropouts were too small in front. :)

retrac1324 03-20-12 03:44 AM

http://i.imgur.com/6zJHy.jpg

Nitram612 03-20-12 04:27 PM

http://img831.imageshack.us/img831/9...1618351851.jpg

Sorry for the crappy phone pic. I like how the spot where the rear brake lever should be is covered up with the same electrical tape that the kickstand is taped closed with.

TheRealFaux 03-22-12 03:03 PM

http://3.bp.blogspot.com/_wb8bAl1P-N...am+chopped.jpg

Butthole_Surfer 03-22-12 03:15 PM


Originally Posted by TheRealFaux (Post 14004359)

What in the actual ****

Leukybear 03-22-12 03:15 PM


Originally Posted by TheRealFaux (Post 14004359)

Somebody please tell me those were salvaged.

PeDDeR27 03-22-12 03:20 PM

:twitchy:

http://mmoqq.com/wp-content/uploads/2011/09/scanner.gif

canemaster 03-22-12 03:26 PM

WWWOoooooooOOWWWWW

adriano 03-22-12 06:17 PM

whoaaa.

craigcraigcraig 03-22-12 06:49 PM

More importantly, how is that brake lever attached? Just with a screw?

jdgesus 03-22-12 07:10 PM

best thing i've seen all day

Nagrom_ 03-22-12 11:31 PM

http://i.imgur.com/Fc0eN.jpg

jdgesus 03-23-12 12:02 AM

LOL WUT HAHAH

i love ppl.

reverse zero setback seatpost

jimmytango 03-23-12 02:18 AM


Originally Posted by Nagrom_ (Post 14006117)

I just cannot wrap my head around this.

Scrodzilla 03-23-12 05:56 AM

I would LOVE to see someone riding that.


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