|
|
|
| Long Distance Pumping (LDP) (1492 Posts)
|
| Topic |
Info |
|
rear: traction == speed?
|
|
On 1/9/2007 deucesdown
wrote in from
United States
(74.92.nnn.nnn)
Hey James, thanks for your feedback on the rear.
Would you say it's the traction that's giving you the pop in the rear truck? I just about never run out of traction while pumping. Yet, when I did small wiggles on that PVD equipped foamcore, that board just launched! Didn't feel like it had anything to do with traction. Do you keep your rears tightened down for more return to center?
My sensation is that if I'm putting a TON of side-to-side traction demands on the rear, I'm giving up too much energy going out wide and coming back. More so at faster speeds. Usually have a high frequency low amplitude wiggle at cruising speed.
James, I was hoping to wait until Chaput's Fyre trucks came out, but now I'm poised over the "Buy" button at Asphaltplayground.com.
Oh, regarding pace, my runs are usually disrupted with sidewalk to road transitions, stop signs, potholes and cars. When the wind kicks in, I look down to see 7mph on the GPS. :( _Top speed_ is like 13mph. James, you're da man.
|
|
|
|
|
rear truck
|
|
On 1/9/2007 Juan M
wrote in from
Venezuela
(200.35.nnn.nnn)
.. how far you dewedge the rear truck and as per your experience .. any benefits in having wider rear axle than front? .. sometimes i feel that i got faster others that i cannot get even going.
Many thanks for the info ....
|
|
|
|
|
slalom rear fo sho
|
|
On 1/8/2007
peters
wrote in from
United States
(24.18.nnn.nnn)
I really prefer the traction from an offset or split-axle truck in the back. It's a marked difference in the potential forward propulsion you've got over a standard truck. Setups with standard rear trucks are fine for chillin, but for a bump up in performance the efficiencies of racing trucks are serious!!
The rear trucks of five current setups in my LDPs, in order from most to least used are
- SplitFire 107mm Rev1 w/dewedged Tracker baseplate
- SplitFire 107mm Rev2 w/dewedged Randal baseplate
- Tracker RT-S Offset
- Japanese GUS truck
- Carver C2 truck
Been running bushings in the 80a-90a range in the rear. Would like to try an offset Bennett, but it ain't in the current budget...
Deuces thats a damn nice average cruising speed if you're going against wind and uphills much of the time! Most of my runs are early morning before the wind picks up. Just like with surfing- the early mornings pay off in smoooth rides.
|
|
|
|
|
Rear truck
|
|
On 1/4/2007
Juan M
wrote in from
Venezuela
(200.35.nnn.nnn)
i'm green to pumping but i'm already adicted to ... i had the same question about the rear truck and i read as much i could find .. not much, except that it should be with hard duro bushing and the tigther the better.... i've been experimenting and so far it seems that my findings are correct. Peters webpage, Sk8kings, Steve Hopper from Insect and Dan Gesmer have been very helpful.
Front wedge about 20 degrees and rear its king pin almost facing down. I have Split 107 front and back - front with one spacer and rear as wider as possible. My board is a Insect City Bomber. I'm still experimenting, technique is also very important ...
Any help very much appreciated..
|
|
|
|
|
rear truck?
|
|
On 1/3/2007 deucesdown
wrote in from
United States
(74.92.nnn.nnn)
How important do y'all find the rear truck? I'd been really focused on the front truck, but have been pretty much ignoring the rear. That is, until I put Carvers back on my LDP.
The power cycle on the Carvers are in a VERY different spot than the splitfire 90mm + RTS 139mm combo I had been running.
I noticed a lot of rear wheel lift when standing still and tilting the board, so I loosened the rear truck and the propulsion seemed to drop quite a bit.
Also, I had the fortune of trying out someone's foamcore+PVD setup, and that thing took of if you even thought about pumping. Made my LDP setup seem SLOW by comparison. I'm starting to think that had more to do with the rear PVD than anything...
Strangely, on my low setup, an Earthwing Superglider with Indy 169s, I gotta keep both trucks super loose to make any power with the pump.
With all this, I'm thinking about getting a serious slalom rear truck, perhaps a splitfire 107mm.
Any thoughts?
Oh, I also got a Garmin GPS thingie. Looks like I'm very slow, about 9.5mph is my "fast" pace, combined kicking and pumping. Fighting wind or uphills with pure pump makes my feet hurt too much! Anyway, I'm amazed at James' pace with pure pumping, hitting 12mph? Wow.
|
|
|
|
|
H N Y 2007
|
|
On 1/1/2007 Kris
wrote in from
United States
(69.228.nnn.nnn)
Happy New Year! Keep on pumpin'!
|
|
|
|
|
yikes html
|
|
On 12/26/2006 deuces
wrote in from
United States
(74.92.nnn.nnn)
sorry, my periods got transformed into underscores...
|
|
|
|
|
how to for noobs
|
|
On 12/26/2006 deucesdown
wrote in from
United States
(74.92.nnn.nnn)
This is the best explanation for novices that I've found: shapeshifter's howto
I do believe you need to create on www_silverfishlongboarding_com to view that link.
Shapeshifter's made other instructional posts on the pump. Search for user=shapeshifter and keywords=pumping for more goodness.
For learning, short wheelbase and super turny trucks help.
Do you know how to tictac? Feels very similar, except instead of picking the front up, you just use the truck's ability to tuuuuuurn.
|
|
|
|
|
what is dan geysmer talking about?
|
|
On 12/20/2006
jamal
wrote in from
United States
(71.232.nnn.nnn)
hey, can anyone spare the time to really talk about how to pump? i looked through dan geysmer and it hasnt made much sense yet.. i have a krown pintail. abec 9 and 70mm hard, stock trucks. medium flex. email me if you can really help out..
jahnosha@gmail.com
i'll really appreciate it.
-jamal
|
|
|
|
|
yep
|
|
On 12/19/2006 kris
wrote in from
United States
(209.76.nnn.nnn)
yep, smallies worked. im back in bid-ness.
took about a 3 week hiatus from da pump, been working on a couple old school 24" GT BMX cruisers (for me and the missuz). pretty funny- two 30-somethings riding around on dirt bikes. fun as heck though. would like to build up an old 26" if I could find one.
gotta say, the weather has been perrfect for ldp in Sacramento the last couple days. Sunny, dry and cold. I am playing hookie tomorrow and going to hit the river bike trail (off limits to roller, but I'll take my chances). i love being able to "work from home." and bless the cell phone.
|
|
|
|
|
Trucks
|
|
On 12/14/2006 DR
wrote in from
United States
(66.13.nnn.nnn)
small
|
|
|
|
|
cx cups
|
|
On 12/10/2006 peters
wrote in from
United States
(24.18.nnn.nnn)
Kris, the small tracker-sized cups work on the older CX baseplate i've got, i'd assume they're still the same.
|
|
|
|
|
and if so, which size
|
|
On 12/5/2006 kris
wrote in from
United States
(209.76.nnn.nnn)
large or small
|
|
|
|
|
pivot cup bushings for Carver CX
|
|
On 12/5/2006 Kris
wrote in from
United States
(209.76.nnn.nnn)
Will the Khiro pivot cup bushings fit as replacements for the stock cup bushing in a Carver CX front truck?
My LDP is currently shelved until I can get new cuppies.
Thanks.
-Kris
|
|
|
|
|
Landyachtz dingy
|
|
On 12/4/2006
turbo.jesus
wrote in from
United States
(64.30.nnn.nnn)
how is the dingy for carvin and pumpin? i have a pintail now that is a carve, and i want to start getting into pump boards. the dingy looks really small though. is it good for cruising around and pumping?
|
|
|
|
|
split pro
|
|
On 12/3/2006
peters
wrote in from
United States
(24.18.nnn.nnn)
Rick, the pro splits are definately a nice bump up. I think it was 'relatively insignificant upgrade', but more accurately, they're an optimization for something like long distances where your turns aren't always required to be as precise and technical as for slalom. But you can always benefit from extra precision (imagine last-second squirrel dodging, dog lurching at you while owner holds them back by the leash, boulders on the shoulder at 35mph downhill...etc) but that's where I don't go up to a Rad or Gog, there are usually trade-offs at the high end, i.e., fragility for performance. So far the split pro is the highest performance truck I've tested on trails that's incredibly durable as well. I just keep my LDP and GS board fronts mounted with the randal-type baseplate, its easy to swap out the hangars/bushings! If someone were trying to save a few bucks, the earlier rev's are great. I use 107mm's + spacers, as the 90's seem a bit narrow for big wheelbase and longer pump cadence.
|
|
|
|
|
split trucks
|
|
On 12/3/2006
Rick S
wrote in from
United States
(12.190.nnn.nnn)
Thanks for the feedback. PSR, while the Fyre trucks look promising, my needs (desires) may not be satisfied by waiting… James, I read in a previous post that you didn’t think the new splitfire pro was LDP oriented. In your opinion is the addition of the spherical bearing a plus, a minus, or a wash for LDP? If it is a minus, which of the older versions was best suited to LDP?
Thanks again for the help!
|
|
|
|
|
durable splits
|
|
On 12/2/2006
peters
wrote in from
United States
(24.18.nnn.nnn)
Hey Rick, there are about 15-20 of these concrete 'cattle guards' on my commute, and I haven't yet busted a kingpin on splitfires-- best to approach the gaps at an angle like you're saying. Only when there's too much bike or ped traffic alongside and no choice but to go straight over them at 90 degrees, I compress the deck and hop it.
Stress from rolling over gaps plays heavily into developing fissures, creating pivot point fatigue. I'd just recommend not using more than 5mm spacers on each side of the splitfire hangar, to reduce distance between wheel and hangar and potential for stress on axles.
Since GOGs are very similar to Radikals they're perfect for tight and hybrid race courses, but IMO they're too delicate for the rough stuff, its like riding a Jaguar on a 4-wheel drive course. Even though the ride is like butter, I don't touch them for long distance pumping over rough and predictably bad terrain, based on 1st- and 2nd-hand experience.
|
|
|
|
|
Sidewalk trucks
|
|
On 12/2/2006 PSR
wrote in from
United States
(75.68.nnn.nnn)
Rick, wait for the Fyre's to arrive.
|
|
|
|
|
the mile
|
|
On 12/1/2006
peters
wrote in from
United States
(64.236.nnn.nnn)
HC it would be really cool to see more times sent in on the cyber mile, with enough interest we could secure a flat venue here next year and do it as part of a larger event! I hear yak on other forums about how the fastest human sprint is 26mph, and how 15mph isn't that fast on a board, yadda yadda, but still hoping more guys get out and actually ride this to spec, and check it out. The fastest push mile so far is Mark G's 4:22. I know an all-out flatland mile is a LOT easier to do on a fingerboard or keyboard ;-)
|
|
|
|
|
Durability of split axel trucks?
|
|
On 12/1/2006
Rick S
wrote in from
United States
(12.190.nnn.nnn)
My LDP pump runs usually include at least 3 to 5 miles of cement sidewalks with both wide and uneven expansion joints. I’ve only broken one kingpin so far, and that was years ago on a German seismic. The stress point on the Seismic trucks has been redesigned in the newer versions of that truck, and I haven’t has any problems since. I’d like to try one of the split axel trucks like the split fire or GOG, but I’m concerned about the effect of the constant impacts of the expansion joints. Some of these joints are almost 2 inches wide and others are vertically offset by more than 1 inch. I try to lessen the blow by taking the joints at an angle, but before I spend $130 or more on a new truck I wanted to know if this type of continual abuse would cause the hanger or pivot point to break. Any thoughts?
|
|
|
|
|
cyber mile
|
|
On 11/28/2006 hc
wrote in from
United States
(168.149.nnn.nnn)
peters, just checked out that page, some impressive mile times!
curious, what the push mile record would be!
those freeline skates seems like they could be very fast also, no bar between the legs to limit the strokes, yes it's not pumping, more like sideway rollerblading..
|
|
|
|
|
swivel vs. pump
|
|
On 11/28/2006
peters
wrote in from
United States
(64.236.nnn.nnn)
hc - maybe that fast snakeboarder dude could post a time up on the cyber mile page? he can hit the start line at full speed as long as its flat. it would be more fun to try in real-time, head to head, of course!
|
|
|
|
|
alterskate
|
|
On 11/28/2006 hc
wrote in from
United States
(168.149.nnn.nnn)
someone told me about this board a long time ago, finally I see a pic of it..
It looks to be exactly the same (not in looks but in mechanics) as a snakeboard, or the new dimension streetboard.
I have seen a guy who can pump very fast on the flats with a snakeboard, possibly faster than a skateboarder and he can do it from a standing stop.
|
|
|
|
|
alteredstate board
|
|
On 11/22/2006 peters
wrote in from
United States
(64.236.nnn.nnn)
that's funny, its a differently designed snakeboard essentially. swivelling and twisting to propel, but not really 'pumping.' probably fun to tool around on, in the 5--9 mph range??
ravn, great idea on the ldp world maps! i'm going to split the 'events' and the 'rides' page eventually, so it would be great to get pictures/maps that I could add for the updates!
|
|
|
|
|
How to Pump