Vespa Vented Drums
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Hooked
vespas, lambrettas, cushman, and mopeds
Joined: 08 Feb 2009
Posts: 386
Location: dallas, tx
Mon Feb 16, 2009 4:35 pm quote
Ive seen people have vented drums front and rear to keep the brakes cooler. whats everyone thing?
Banned
2:6
Joined: 11 Jan 2007
Posts: 7382
Location: San Francisco
Mon Feb 16, 2009 5:32 pm quote
I've never had the drum breaks work well enough to have venting hub make a difference. I have vented the shoes and it seems to help.

Vented hubs do look great and are lighter so no harm.
Hooked
08 s150, 79 P200E
Joined: 29 Dec 2008
Posts: 235
Location: San Diego
Tue Feb 17, 2009 9:40 am quote
Just don't ride them in the rain... Unless you are racing, I can't see these actually being functional to the point where you would notice the effect.
Enthusiast
Joined: 12 Dec 2008
Posts: 65
Location: Los Alamitos
Tue Feb 17, 2009 1:43 pm quote
Drum brakes in general are retarded! On any vehicle/motorcycle.

That said, I have run vented hubs on a Lambretta, and trust me.....it makes a difference- your brake pads last longer, and stop better without glazing over.

I also rode in the rain all the time....they never got flooded, unless I was riding through a puddle deeper than the tire profile, and in that case.....unvented hubs wouldn't help you either.
Hooked
vespas, lambrettas, cushman, and mopeds
Joined: 08 Feb 2009
Posts: 386
Location: dallas, tx
Tue Feb 17, 2009 5:09 pm quote
well i drilled them and will let you know of an update after a nice long ride.

02-12-2009 vespa vented drums.jpg

Member
1977 P200e
Joined: 22 Jan 2009
Posts: 12
Location: South Bay, So Cal
Tue Feb 17, 2009 5:33 pm quote
The look of vented drums is trick; however, I would be concerned if some sort of small object like a piece of asphalt or pebble somehow flung in there causing some damage or brake failure. I'm probably just overly paranoid
nothing at all
Joined: 14 Nov 2008
Posts: 9657
Location: westla
Tue Feb 17, 2009 5:56 pm quote
wel hey kev,hows the bike.
Member
1977 P200e
Joined: 22 Jan 2009
Posts: 12
Location: South Bay, So Cal
Tue Feb 17, 2009 6:45 pm quote
jimmyb865 wrote:
wel hey kev,hows the bike.
I took it out for a little spin today after bumping up the main and richening the idle air mixture and it is running well. The Sito+ was a great addition. UPS was supposed to deliver my Pirelli SL26's today but must have been scared away by my dog...Yellow Lab The tracking note said "Recipient Away on Holiday."

The rain is very welcome for CA water reserve purposes; however, it's digging into riding time
nothing at all
Joined: 14 Nov 2008
Posts: 9657
Location: westla
Tue Feb 17, 2009 8:01 pm quote
it's been my exsperience that after the rain we've been having the roads are sparkling,really.

we don't do well with drizzles,to much residues that make for very slick conditions.

these storms have just pelted the streets clean.

i went for a ride today and it was awsome.
Hooked
vespas, lambrettas, cushman, and mopeds
Joined: 08 Feb 2009
Posts: 386
Location: dallas, tx
Wed Feb 18, 2009 6:14 pm quote
update: I went for a good ride with speeds of 55 mph and seems fine. sure looks cool.
Ossessionato
01 ET2 - 01 ET4 -- 05 GT200L / 05 PX150 / 1986? Honda CH150 Deluxe.
Joined: 27 Nov 2005
Posts: 2999
Location: SoCal OC
Wed Feb 18, 2009 7:49 pm quote
You may want to clean the brakes out often, you'll end up with exhaust residue, sand and grit entering in the newly drilled holes.
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