Skip to main content

Living in N/W Florida it is reasonably warm a good deal of the time and I don't get much heat out of the Speedies system anyway. I am considering tearing out the heater boxes, capping the fresh air holes on the shroud, sealing the heater openings in the frame and spending some money on a new exhaust. I don't want to spend the kids college fund on the exhaust but my bogus monza four tip must be creating a good deal of back pressure. I've heard that from several of you over the years.

So, what are the upsides to this, the downsides to it, and what better exhaust can I get for $500.00 or less?

Bob

   

       

Last edited by Panhandle Bob
Original Post

Replies sorted oldest to newest

BobG posted:

Living in N/W Florida it is reasonably warm a good deal of the time and I don't get much heat out of the Speedies system anyway. I am considering tearing out the heater boxes, capping the fresh air holes on the shroud, sealing the heater openings in the frame and spending some money on a new exhaust. I don't want to spend the kids college fund on the exhaust but my bogus monza four tip must be creating a good deal of back pressure. I've heard that from several of you over the years.

So, what are the upsides to this, the downsides to it, and what better exhaust can I get for $500.00 or less?

We offer a 1 5/8 thick flange Stainless Steel sidewinder exhaust that is in your budget. It has a hide away exhaust tip, so the only thing you would have to do is ad a tail pipe out the center if that"s what you wanted. 

Attachments

Images (1)
  • 20160419_172610[1]

Back in the late 1960's, my late brother, Ray, and I raced Greeves Trials bikes in the New England circuit (Yeah, I know...I was a lot crazier back then).  Ray was playing with a big exhaust expansion chamber on his bike and heard that ceramic coating it would reduce the head heat (and the potential for burning your inner thigh) during hard riding, so he found a fellow rider who worked for Norton Abrasives' (the "Bear" Sand Paper company) and their newly formed Ceramic Division and asked if he could coat it.  Guy says "Sure!  We can try out a new process on it!" and off it went, returning a few days later a bit heavier.  While it improved things a bit and he raced with it for a couple of seasons, he later moved to racing a 500cc "Yankee" Trials bike - WAY too much bike for me.

Anyway, after Ray died a few years ago, I was at his house helping his wife with a plumbing leak and spied that same expansion chamber sitting in a corner of the cellar near some snow mobile parts.  The ceramic coating still looks brand-new.  Don't know what they used or how it was applied (they were developing some ceramics for NASA and the military back then) but MAN!  Was that stuff TOUGH!

Here's the Greeves we both had back then.  One fast, indestructible bike.  Me.....Not so much.  Yes, that's a modified "Earlings" front end - on a woods bike.  I loved that bike.

BTW:  For you Bikers out there, Ray's Yankee was a BEAST!  Two OSSA 250's grafted at the crankshaft with an amazingly rugged frame around it.  THE most incredible Trials bike I have ever seen.  Take off easily in second gear and rev to about 60MPH before shifting into third - IN THE WOODS!  You can read about it here:

Last edited by Gordon Nichols
BobG posted:

Living in N/W Florida it is reasonably warm a good deal of the time and I don't get much heat out of the Speedies system anyway. I am considering tearing out the heater boxes, capping the fresh air holes on the shroud, sealing the heater openings in the frame and spending some money on a new exhaust. I don't want to spend the kids college fund on the exhaust but my bogus monza four tip must be creating a good deal of back pressure. I've heard that from several of you over the years.

So, what are the upsides to this, the downsides to it, and what better exhaust can I get for $500.00 or less?

I cap off the hot air vents out of the shroud in the summer months. I cut a couple of slits on each side of the vent, put in an expansion plug with a little silicone on it, put the hoses back on with the clamps over the expansion plugs and they are firmly held in place. I drilled a small hole in the center of the expansion plug and put a screw in it for easy removal.

Vintage Motorcars - Alex posted:
BobG posted:

Living in N/W Florida it is reasonably warm a good deal of the time and I don't get much heat out of the Speedies system anyway. I am considering tearing out the heater boxes, capping the fresh air holes on the shroud, sealing the heater openings in the frame and spending some money on a new exhaust. I don't want to spend the kids college fund on the exhaust but my bogus monza four tip must be creating a good deal of back pressure. I've heard that from several of you over the years.

So, what are the upsides to this, the downsides to it, and what better exhaust can I get for $500.00 or less?

We offer a 1 5/8 thick flange Stainless Steel sidewinder exhaust that is in your budget. It has a hide away exhaust tip, so the only thing you would have to do is ad a tail pipe out the center if that"s what you wanted. 

If you ad a pipe for a center exhaust make sure you size up or you'll choke the motor down.

Chuck Martin posted:

I also rode observed trials on a Greeves Anglican, then roadraced a Bultaco Metrella and a TSS roadracer.

Wow...you guys had some nice and unique bikes.  I had a few old Jawa's back in my teens. Had an old NSU Max once too. Rode BSA's exclusively until about 5 years ago. 

But Chuck...this one's for you. I remember this ad from the late '70's here in town when some lad had a crazy bike for sale. ..".Bultaco Metralla Parsang ( not sure I spelt that right ) ...out dated road racer, dirty , loud and hard to start and very rude. Prefer sale to experienced rider. "  Those exact words have been embedded in my brain since seeing the bike. Some things make an impression. Ossa was another Spanish bike. 

I think it's fascinating and somewhat failing that we don't get to see some other sides of the friends we meet at Carlisle. Methinks there are some interesting stories of other interests that may be entertaining.

While racing the Bultaco at Watkins Glen in the late sixties, an older more experience guy told me I was mixing the oil and gas way to rich, and convinced me to mix it much leaner. The track was rough and the back wheel came off the ground on a bump and I over red ,it promptly seized and I went off through  the fiberglass fairing and landed on my buttocks, back and elbows no injures. In those few moments it lay there it had cooled off enough were I could bump start it and rode back to the pits and mixed my original percentage of oil and gas removed the rest of the fairing and went back out for practice.

To answer the question of what trials we were riding, back in the 1960's there were a number of organized woods "races" going on in New England.  Typically, they ran 5, 10 and 25 miles and were best-time-of-day events, limited to 20 riders per group, tops.  Various classes, depending on displacement, with lots of Bultacos, the occasional Jawa and Ossa, a few Greeves and the appearance of a seemingly indestructible, quite fast and beautiful handling set of bikes from John Penton - I think his best was the "Penton 6-day", created to compete in the European 6-day trials.  Yamaha, Kawasaki and Honda weren't yet competitive in New England back then, but coming on.  My brother and I started on Panonia bikes (Hungarian) and then switched to Greeves, him on a 360 Griffon and smaller, lighter me on a 250 Internationale.

Anyway, our races were a combo of woods, deep woods, fields and dirt roads.  With typical gearing on the smaller bikes like ours, 50-55 was absolute top end.  On the 500 Yankee bike, however, Ray could top out just over 100.  It was a 6-speed and designed for the Euro circuit (european riders were nuts).  In America, to comply with the 5-speed-max rule, we just locked out 1st gear and took off in second.  That bike was a brute.  To show the crazier rider between us two, Ray eventually broke his wrist, his forearm, his collarbone and his lower left leg.  I broke.....Nothing.

There weren't many bikes in the 500cc class back then.  The typical big bikes then were too heavy to handle well.  By the early 70's we were both married and that ended our motorcycle racing careers.

Post Content
×
×
×
×
Link copied to your clipboard.
×
×