Penton Owners Group

General Discussion => Penton Talk => Topic started by: rob w on July 03, 2009, 01:40:31 PM

Title: Handlebar risers
Post by: rob w on July 03, 2009, 01:40:31 PM

(((( News )))) - Team Pentavarna riders win 5 AMA Grand National Championships using Rob W's handlebar risers !!!


(http://i52.photobucket.com/albums/g8/BobWardlow/hr3.jpg)
(http://i52.photobucket.com/albums/g8/BobWardlow/hr7.jpg)

:) :D [8D] :) :D [8D] :) :D [8D] :) :D [8D] :) :D [8D] :) :D [8D] :) :D [8D] :) :D [8D] :) :D [8D] :) :D [8D] :)

Bob W
Title: Handlebar risers
Post by: marsattacks on July 03, 2009, 05:34:30 PM
Nice work! You are talented.

Click here to see Mars attack:
http://www.ufodigest.com/news/0208/images/marsattacks.jpg
Title: Handlebar risers
Post by: marsattacks on July 03, 2009, 05:43:54 PM
Nice work! You are talented.

Click here to see Mars attack:
http://www.ufodigest.com/news/0208/images/marsattacks.jpg
Title: Handlebar risers
Post by: Big Mac on July 03, 2009, 09:03:54 PM
Anyone ever try out the aftermarket risers, see if they'd fit Ceriani top clamps? http://www.pitposse.com/clamps.html

Not likely the right bolt spacing I presume.

Bob, what price would you need to charge for a set such as these?
Title: Handlebar risers
Post by: brian kirby on July 03, 2009, 10:38:41 PM
I use these, the are risers and they also allow you to set the bars back if you want to raise fork tubes and the bar is in the way.

http://www.powermadd.com/products/PowerRiser475.html

(http://www.powermadd.com/products/PM15433_installed_lg.gif)

They come in 2" and 3" rise.

Brian

'72 Berkshire
Title: Handlebar risers
Post by: rob w on July 07, 2009, 03:38:45 PM
I looked at six different Penton/KTM triple clamps, and all six were different in some dimensional respect.
I thought it would be very important for the risers to sit tightly on the upper triple clamp, without a gap between the two, and without sloppiness in the half round area to twist. That way 100% of the stress is'nt put on the fasteners. And in the case of all the clamps up to 1976, they have 6mm screws. '76 on they are 8mm screws.

Jon, So far I've learned that, without taking the project to someone else with CNC machinery - I can not afford to make them affordable.
Another one on the back burner.

Bob
Title: Handlebar risers
Post by: Tahitian_Red on July 07, 2009, 06:03:15 PM
Is it possible to drill out the top clamp mounts to 8mm?  I have some aftermarket risers that may work, but the use 8mm bolts.

Racing the "FaltaNator" in 2009
Title: Handlebar risers
Post by: chuck on August 04, 2009, 06:50:53 PM
Brian,

Do you use them on your Berkshire. 2" or 3".

Chuck
#702


72 125 Six Days
72 100 Berkshire
74 250 Hare Scrambles
72 Wassel

Title: Handlebar risers
Post by: brian kirby on August 04, 2009, 07:04:55 PM
Nope, I dont need them on Pentons, but I have a set on my Can-Am. The same company also makes risers kinda like Bobs.

(http://www.powermadd.com/products/PM15302-on-Raptor.gif)

Brian

'72 Berkshire
Title: Handlebar risers
Post by: Jim A on August 05, 2009, 09:34:33 PM
Rox Speed has an interesting assortment of risers.
I believe the site is RoxSpeedFX.com
I use a set of their "block" forward mounts on my
modern bike, the actual risers look a little scary for
any aggresive riding the way they clamp on.

Jim A