Wildguzzi.com
General Category => General Discussion => Topic started by: Huzo on April 15, 2016, 03:59:15 AM
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As I've mentioned before I've learned a fair bit about some aspects of my Norge but when it comes to other Guzzis I'm pretty clueless. Can some one tell me what's the difference between a Tonti frame, Spine frame, Loop frame or any other variants of relatively modern Guzzis?
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No.
But let me tell you all about the center of gravity :cool:
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:laugh:
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No.
But let me tell you all about the center of gravity :cool:
Ok Taz, always eager to learn
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:popcorn: :popcorn: :popcorn:
I think I know roughly but then, I am not a big block man so I will wait for the experts.
I THINK the smallblock frame is a modified Tonti. Correct me if I am wrong.
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There is a book for such things: Guzziology
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Loop frame= V700, Ambo, Eldo..
Tonti (design by Lino Tonti) =V7 sport, Convert, 850t & T3, 1000SP, cal2... Gen2 Tonti= Cal 3, Cal1100, EV etc..
Spine frame = V11 Sport & Lemans.. also 1100 Sport, Centauro, Daytona.
don't know what the frame is called on the new Cal 1400's.
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:popcorn: :popcorn: :popcorn:
I think I know roughly but then, I am not a big block man so I will wait for the experts.
I THINK the smallblock frame is a modified Tonti. Correct me if I am wrong.
Tonti designed the smallblock frame, too.. so it's a Tonti as well as the big block frame. :smiley:
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Didn't The Lone Ranger ride with Tonti? :grin: :evil:
Fixed it!
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Didn't Tonti ride with the Lone Ranger? :grin: :grin: 🏍
You have that backwards :laugh:
Dusty
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Didn't Tonti ride with the Lone Ranger? :grin: :grin: 🏍
Oh Signor, do we have to leave all of our good friends so soon ? Only 'till next week, HI HO SIVER ! AWAY............!!!!!
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Loop frame was the original V-twin frame -- its major elements were curving tubes that cradled the engine.
Tonti designed a lighter, stiffer frame using straight tubes with shorter runs.
Spine frame is shorter and lighter still and makes the engine a stressed member with no frame tubes underneath. It's literally a spine above the engine from the steering head to the swingarm pivots.
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Thanks Testarossa and others, that's been a help.
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The 'loopframe' is named for the continuous, horizontal 'loop' which forms the back end of the frame for supporting the rear of the seat and fender. Apart from the swingarm, the loopframe is all one welded-up unit with numerous curved portions.
(http://i.ebayimg.com/images/a/%28KGrHqJ,!kwE-moyh,1bBPuwdVe0Rw~~/s-l300.jpg)
The Tonti frame uses only straight pieces in its welded up section. The engine and transmission are further supported by lower frame rails not evident in this picture.
http://knifemaker.smugmug.com/Motorcycles/Moto-Guzzi-V7-Sport/i-r8tdzs2/0/S/V7-Sprot-021sts-S.jpg (http://knifemaker.smugmug.com/Motorcycles/Moto-Guzzi-V7-Sport/i-r8tdzs2/0/S/V7-Sprot-021sts-S.jpg)
Patrick Hayes
Fremont CA
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The 'loopframe' is named for the continuous, horizontal 'loop' which forms the back end of the frame for supporting the rear of the seat and fender. Apart from the swingarm, the loopframe is all one welded-up unit with numerous curved portions.
(http://i.ebayimg.com/images/a/%28KGrHqJ,!kwE-moyh,1bBPuwdVe0Rw~~/s-l300.jpg)
The Tonti frame uses only straight pieces in its welded up section. The engine and transmission are further supported by lower frame rails not evident in this picture.
http://knifemaker.smugmug.com/Motorcycles/Moto-Guzzi-V7-Sport/i-r8tdzs2/0/S/V7-Sprot-021sts-S.jpg (http://knifemaker.smugmug.com/Motorcycles/Moto-Guzzi-V7-Sport/i-r8tdzs2/0/S/V7-Sprot-021sts-S.jpg)
Patrick Hayes
Fremont CA
Will my Mk 2 Le Mans have the same frame as the red one in your kink ?
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Will my Mk 2 Le Mans have the same frame as the red one in your kink ?
Essentially, yes. Main differences may be in the bolt-on lower rails (under the sides of the engine), because the sidestands may differ.
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You have that backwards :laugh:
Dusty
You get em Dusty. :thumb:
LR was lost in the wilderness until he was saved by his buddy.
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Ok thanks again guys, at least I'm gaining some traction here.
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Ok, the spine frame. In the 80s to be very brief, a dentist (Dr. John) was quite successful campaigning a Guzzi, basically a Lemans 1000 (Tonti frame) A collaborative effort with Guzzi ended up being the Daytona winning spine frame. From that, Guzzi built the 1100 Sport, Daytona, Centauro, and V11 sport, the last *real* Guzzi. :evil: :smiley:
Here's the frame of a very early 1100 Sport.. Dr. John's race bike much in evidence. You can see how the engine/transmission is a stressed member.
Belle, the Guzzi Dawg looks on.. :smiley:
(https://farm2.staticflickr.com/1513/26211425200_ddb6315af1_c.jpg) (https://flic.kr/p/FWdpw9)2016-04-17_12-14-31 (https://flic.kr/p/FWdpw9) by Charles Stottlemyer (https://www.flickr.com/photos/107188298@N06/), on Flickr
Edit: My steam powered ISP has been driving me craz(ier)
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There's a story that Dr John borrowed his spine frame design from an English custom builder named Tony Foale.
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OK - A loop is for people who distrust a motorcycle who's engine is not "wrapped" by a frame.
A Tonti is for people who believe that curves in a frame lead to diminished handling and straight frame member are simply more trustworthy.
A "Spine" is for people who believe that frames in general are over rated (where's our monocoque Goose!), love to say "stressed member" - which we'll leave to the Freudians to fight over - and have always believed that the Guzzi engine should shine over and above all other componentry. We'll ignore the "pork chop" for now, though I do think it is exquisite, if, it is properly HOLLOW!
Now then. What the hell's goin' on with that Griso!?! :evil:
Todd.