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Discussion in 'Airheads' started by Ras Thurlo, Jan 30, 2013.
Wait... did I miss something? Is that your bike that you're posting pics of?
nope, but would not mind if it was
just assumed there are others out there that like looking at this kind of stuff
another TAG rebuild
the opposite of the one above, USD forks, paralever rear, pea-shooter tank.
check out the footpeg relocation:
Those lowered footpegs are a bit better executed than mine I don't know why I don't see that on more airhead dirtbikes. Moving my footpegs made the bike feel 50 pounds lighter.
Man I can't wait to get that shaved r65 block in there. That looks soooooo cool. BMW engines are downright fugly otherwise.
Looking at the foto it seems like the pegs will be at or lower than wheel axles post sag.
when standing, I have got to believe that changes the handling considerably for the better
mine are a bit lower than stock and i don't want them any lower.
I get kicked of the foot pegs already if i hit a dip in a tire wide track/ rut? ?
I rather be a few cm above the lowest point of the engine, so of your engine hits the ground, stone, tree,.. your still on your pags.
yes, but aren't you doing jumps on a stock length monolever rear?
But they're not building these bikes for a soft ride around the city right?
Love that picture
The pegs on that TAG bike are a lot lower than mine. At this point, those guys have probably built every type of airhead imaginable so I'm betting that's a well-tried setup.
Any chance of a pix of the opposite side of the blue TAG paralever bike?
or the front? I'd like to see what they did to cap off the alternator
So to achieve the 260mm of travel, do you have to extend the shock? Or do you get that effect since the lever is longer but the swingarm is designed to accept the stock shock?
Pardon my ignorance but my front end is coming along so I'm thinking about going up in the rear
I was told 250-260mm of travel for my TAG mono, which is consistent with Desert Pistons comments.
Although I have not measured it, I understood the shock to be basically stock length on the TAG mono, and therefore travel comes from lever effect of extended swing arm.
From what I gathered HPN put the shock mounting point further back on their monos and therefore requires a longer shock.
That's correct. They cut off the stock shock mount and weld on their own more substantial one in basically the same spot. That "same" spot gets moved 100mm farther back when the swingarm gets extended, so it needs a longer shock. I can't recall the overall length off the top of my head.
The TAG positioning for the sake of comparison
a few more shots of the recent TAG rebuild
still love that footpeg mod
Please get us a photo of the other side.!
To see how they mount the r100gs shock on the R1100 swingarm.
Or even better if they have one on a bench, to see the welding and if it is internally reinforced.
Really interested in this mod..
I have....scratch that, had the HPN Paris Dakar model with a 13mm offset on the rear wheel and have never come across any unusual behavior. I use the bike for a lot of very slow technical riding in skills challenges and I would reckon that it will have a more severe influence riding slow and turning in steep. I have never noticed that I need to compensate between left and right turns. At speed the bike is as stable as can be on both dirt and tar.
That said these long chassis bikes are dogs to handle in slow technical stuff. Getting over obstacles is a breeze but tight turns is a nightmare and requires lots of practice and knowing how to place ones weight. Even then most skills courses have many tight turns, to small for this bike to turn in. With the HPN I can't compete even though I might be more skilled than most. It is a lot of fun though and I always give it my best.
On the other hand I have been riding many a sand track at speed fully loaded with luggage and plenty fuel and this bike is in its element.
In this sand riding video the rider with the helmet cam is also riding another HPN Paris Dakar model. You'll see my bike later in the clip doing a few light tumbles as the track starts to get tight and windy and me out of energy.
Hey Altus! Where you been??? Thanks for the vid!