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Discussion in 'Airheads' started by norton73, Nov 9, 2012.
Just got an email from Max BMW, this looks nice.
Boy the 2/1 high level exhaust is butt ugly. it is also a $3700.00 option.
That muffler is pretty awful. Where did you see that the exhaust was $3700?
Just the header pipes would suit me.
It kinda looks like he's carrying a spare saddle.
If they offered to pay me $3700 to put that on my bike, I'd have to think about it. But of course I'd knuckle under, I need the money.
It certainly is ugly. Maybe the idea is to make a really quite off road bike? I don't know what these bikes are. I get the idea of off road because the exhaust is raised.
It is supposed to be a replica of the ISDT exhaust, Google Herbert Schek, he made the 1973 ISDT BMW's they look a lot better. The price is from Max BMW parts site. I just made one for my ISDT replica, I used 2 sets of headpipes and cut them up to get the bends, tig welded together, my muffler is an oval Pro-Circuit alloy muffler, and I had the pipes jet-coated with high heat porcelon/aluminum (similar to powder coat) total cost $165, and a day to fab and weld them I will post pics when I finish the bike an a couple of weeks.
+1. This works a lot better for me.
The muffler? It's the rear brake lever that sticks out like a sore thumb to me. I wonder what riding a bike in the dirt would be like with a twin leading shoe front brake? You had better hope you make that hill! If you don't, that brake won't be much help!
Interesting exercise. Doesn't look much like the original, but with all the scrambler rage lately someone will want it.
I like that. From the tank bag bungies to the spare tube, it's Teutonic ingenuity at it's finest. :huh
In the mid sixties, BMW actually used a similar muffler on the ISDT bikes, they had a /2 motor in a very /5 looking frame and US style telefork.
In the photo of the Schek bike, he used a Maico fork and brake, not the BMW brake. Schek constantally refined his bikes and many photos show different upgrades as time went on. He rode the ISDT 25 times and continues to ride enduros, he is in his late seventies. He even rode the Dakar rally, and was responsible for the early Paris/Dakar bikes.
Yep, nothing uglier than when these are exposed!
The cross over exhaust works on the /2 because there was such a large gap above the engine. Even with that header wrap, it's so tight between the top of the engine and the tank, I would think there would be some serious heat going into that fuel tank. Not sure what the actual consequences would be, but I don't think it's an optimum scenario.
All this wrapping and moving the exhaust pipes is so they don't get crushed in ruff terrain? I agree that it looks like it works better on the /2. But I don't get it.
I was drawn into a long exchange of Emails once with an old guy who did not even ride a motorcycle anymore. He wanted to make a replica of a Maico bike (I saw this name mentioned in another post). He could not understand what needed to be done to build a kick starter 5 speed trans. I don't even know what all might be needed but I told him as much as I suspected and I told him to forget it. He had this obsession with building this bike. That nobody would ever ride.
Fortunately he finally left me alone when I CAPPED LETTERED him about how ridiculous I thought his idea was.
"It's the rear brake lever that sticks out like a sore thumb to me"
I am almost finished with my current ISDT project. the older one in the previous post is my 57 R-50 ISDT. I made it about 10 years ago. To make a high pipe work on a /5 and newer frame, the tank must be cut and sectioned on both sides, the voltage regulator needs to be moved. wiring coming from front cover needs rerouted. I have taken pics of the project, and will post when finished. It takes a lot of fabbing to make the later bikes into enduros. I'm pretty happy with the results. waiting for a cylinder (should be here the 15th) and I can button up the motor. finishing wiring now.
I hope everyone noticed how ol' Jack Penton has his pipe INSIDE the frame where it is way more out of the way versus like the bike in question. I swear a lot of people making these up pipes have never really riden dirt bikes or they wouldn't be making pipes that are completely in the way of riding a dirt bike hard. There is nothing like a brused inner leg that is then cooked.
The high pipes on my 57 R-50 never burned my leg, because if the frame design, the muffler must run outside the frame.
On the Schek bikes, the head pipes and crossover are under the gastank. the rear pipe and silencer are inside the frame, look at the shock spacer, moving the shock outside the frame and with an inch spacer for offset. makes enough room for the pipe/silencer between the shock body and wheel. Schek also fabbed a decent tucked away brake pedal.
The tank on this one was cut out in a few spots, re-welded, etc. Tough to see in the one picture, but a lot of thought into that exhaust system.
Beauty is in the eye of the beholder, not ADV rider
The exhaust is pretty funky, but i dig it, works very well on this bike. Even for off road riding!