Bitubo Shocks
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Ossessionato
2005 Dragon Red Vespa ET4 Speedster
Joined: 07 Nov 2005
Posts: 2109
Location: Rappahannock Co., Virginia
Fri Dec 02, 2005 7:27 am quote
I put this on my Christmas list this year. A Bitubo ET4 front shock. I've read different posts on the subject and everyone that has it says it improves handling etc.

Question?? Where's the best and cheapest place to order from, what model # do I order and most importantly...how hard is it to install yourself, do you need special tools and do you need to do any modifications.

Appreciate anyones help and/or advice.
Hooked
Vespa LX 150
Joined: 27 Oct 2005
Posts: 152
Location: Los Angeles, CA
Fri Dec 02, 2005 9:58 am quote
Another question to piggy back... do they have ones for the LXs?
Ossessionato
2002 ET4 & 1980 100 Sport
Joined: 20 Oct 2005
Posts: 2896
Location: Riverside, Ca
Fri Dec 02, 2005 11:04 am quote
I'd imagine they're the same for an ET or LX, but I could be wrong. No special tools needed. The only hard part is bolting up the top part. The spring on the bitubo is a lot beefier than the piece of crap that they ship out on these bikes, so it's harder to ratchet the bolts on. Aside from that, piece of cake.
Hooked
Vespa LX 150
Joined: 27 Oct 2005
Posts: 152
Location: Los Angeles, CA
Fri Dec 02, 2005 11:28 am quote
I was guessing the rear one would at least work, but would it be a problem for the 11" front?
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 7275
Location: The state of insanity, SoCal
Fri Dec 02, 2005 12:37 pm quote
like spock said, no special tools needed to hook it up, but man is it a pain in the ass! the diameter of the upper spring stop is much bigger than the stocker so getting the top back together is a trial of paitence. other than that, make sure that mofo is on there tight or bad things happen. very bad things.

as for the interchangeability....
the forks are identical, which would indicate that the all the components will swap. however, the parts book shows different part numbers for each shock. this doesn't surprise me, seeing that the lx shock has a larger diameter spring and feels as though it's valved a little more aggressively.

my guess as a "professional" is that they are two different units entirely. given that the wheels of each model are a different diameter, one could surmise that the lx shock has a more limited amount of travel.

but then again, it's only 150.00 and about 1/2hr of your time to figure it out....

if you've got an et and you're looking for one, call up boys down at motorsport. and ask them to tighten you up.

best,
-greasy
Ossessionato
2005 Dragon Red Vespa ET4 Speedster
Joined: 07 Nov 2005
Posts: 2109
Location: Rappahannock Co., Virginia
Fri Dec 02, 2005 2:25 pm quote
Thanks greasy, I've dealt with Motorsport before. Good guys. I'll let you all know how it goes when I get it. Be after Christmas though, as my wife will want to wrap it up and stick it under the tree. That way I can install it when it's 10 degrees out.
Hooked
2003 ET4 150/PX 150 Serie America #232/1974 Rally 200
Joined: 28 Oct 2005
Posts: 218
Location: PONCE, PUERTO RICO
Fri Dec 02, 2005 3:17 pm quote
Hey greasy!how about the Paioli ones...

Cheers!
CUCO
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 7275
Location: The state of insanity, SoCal
Fri Dec 02, 2005 5:00 pm quote
CUCO wrote:
Hey greasy!how about the Paioli ones...

Cheers!
CUCO
bitchin' equipment if you wanna drop the coin.

i think the paioli is double adjustable compression/rebound and has a preload adjustment. while the bitubo is a static adjustment compression to rebound with a preload adjustment.

but i don't have a paioli so i can't be sure of that...
i DO know that they kick arse though.

btw, i am still looking for your g'box door... i haven't forgotten!

best,
-greasy
Hooked
2003 ET4 150/PX 150 Serie America #232/1974 Rally 200
Joined: 28 Oct 2005
Posts: 218
Location: PONCE, PUERTO RICO
Sat Dec 03, 2005 2:48 am quote
Thanks a lot for the info on the shocks greasy!also thanks for not forgetting about the g'box door,Sean is also in the hunt for one,
thanks again!!!

Cheers!
CUCO
Ossessionato
Jeep 4dr. Rubicon, Hard Rock
Joined: 17 Nov 2005
Posts: 2529
Location: Olympia, WA
Sun Dec 04, 2005 9:04 am quote
Pricing
We ALL want good pricing on the stuff we purchase for our scooter........but....try to support your local scooter/motorcycle dealer as much as possible so when we have a question or need some assiatance they will still be in business to help us.
Molto Verboso
06 GTS250. 00 Yamaha Vino airsal 70cc. 01 ET4 (wrecked). 67 Lambretta Vega125. 48 Beam Doodlebug Super. 1915 Board Track replica 80cc
Joined: 07 Nov 2005
Posts: 1352
Location: Monterey Ca.
Sun Dec 04, 2005 9:49 am quote
the trick with mounting the top of the bitubo is that there is a slot cut in the top retaining ring that accomodates your socket.
You grab that ring and turn it to align with the bolt on one side, then rotate it to align with the bolt on the other side.
The other trick is when first getting the nuts on the captured bolts don't push the shock up all the way 'home', just get it on the bolts enough to start the threads and then let the nuts pull the shock up.
it will become evident.
cheers,
marc
Addicted
"Jefe"
Joined: 04 Nov 2005
Posts: 859
Location: Vespa Club Los Gatos - San Jose CA
Sun Dec 04, 2005 10:26 pm quote
Paioli Shocks
I picked up a Paioli front shock at Vespaspeed.com in the summer for $160. It really improved the handling. I hope to get a rear Paioli when they have them back in stock.

Mike
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