1965 250 Monza

[ftripodi]

Thanks Bob for your help on this one

It is difficult in Australia to get info on this bike, but it will be a pleasure to put it back on the road.

hopefully more info and parts become available as i would like to get it back to a really nice standard, hence the reason for all the questioning

However may soon have to realize that i will have to make do with what i have and slowly find bits and pieces.

As mentioned before i am appreciative for all information as this is only my second Ducati and the previous one was very much complete when i got it.

Frank

[ftripodi]

Hi Guys,

Still looking for the parts listed below if anyone can assist that would be much appreciated

Chainguard
Tool boxes
Foot pegs
Ignition barrel and key

Frank

[JimF]

Are you looking for the foot pegs that are just "L" shaped and secure through a long bolt below the engine? I may have a set of those you could have, I will have to look. I jut don't want to look for them if that's not what you need.

Jim

[double diamond]

Your Monza has a number of non original bits: the rear fender, taillight, shocks, horn, passenger pegs, ignition switch, damper knob and seat cover. The seat frame and cover foundation might be original, you’ll have to remove the naugahyde to determine this. The color scheme was probably a black base coat on the tank and side boxes with silver trim and chrome flashes on the tank. Fenders and the headlight shell would have been silver. Frame would have been black originally. The wheels appear to be the 7-fin campagnolo hubs (hard to tell with the pics provided; perhaps you can confirm) that had false air scoops on the front brake plate but no scoop on the speedo drive plate. The sprocket drive plate has six external reinforcing ribs which were the type used on the later Grimeca hubs. So if the rear hub is a 7-fin, the sprocket drive plate may have been changed (these plates will fit either type hub). The 7-fin hubs didn’t have these reinforcing ribs on the sprocket drive plate. Monzas with these hubs were typically 4-speed but you won’t be able to positively identify until you either inspect the shift selector mechanism or remove the clutch cover. 4-speeds usually have “DM250” stamped on the right side case but at some point Ducati changed the left side countershaft bearing from a ball to roller bearing and started stamping “DM250” on the left side case. This orientation was continued with the 5-speed. I’ve seen a few of these late roller bearing cases but don’t have enough serial number information to document the number range. Is there a frame number stamped on the frame backbone near the battery location? USA market bikes didn’t have frame numbers but if yours was Australian market, it might have one? Another indicator is the manufacture year stamped on the brake backing plate boss on the left front fork slider. Matt

[ftripodi]

Hi guys,
Sorry I haven't posted replies but have been a little per occupied but all good now and have time to work on the Monza.

Jim thanks for that I will PM you re the foot pegs.

Matt,
Thanks for the post and info.
I have coming in the next couple of days original tail light and bracket,shocks are taken care of,chain guard and clutch lever on eBay at the moment and waiting for them to end.
Tool boxes I am working on.
Seat frame and base is original so will have to search for a cover.
Rear pegs I'll have to find
Visiting Phil from Road and Race on the weekend for damper knob and ignition switch but may be a long shot on the switch.
Will have to decide on the rear fender as I like the look of this one.
The front hub is exactly as you have described no air scoop on the speedo drive plate side.
The sprocket drive plate does have 6 ribs.
also bike has the original regulator which will need some work.

Bike is an import and was last registered in 1978 in Pennsylvania so no frame number.

Rims have a marking that I'm yet to fully make out as the are rusted over but the wording starts with a Sc, any clues on this one would be appreciate it will make the decision to rechrome or bin easier.

Will have to check if it has a year stamped on the fork slider.

Thanks for the info on the color scheme as it confirms the limited research I have found. The chrome flashes on the tank I am looking into a new product which is called fantasy chrome, it is a spray on product from italy which is used widely in the show car world and is a lot cheaper than rechroming the tank and is extremely durable. Would be interested in knowing if anyone has used this product and comments on it.
Frank

[ftripodi]

Some closer images for discussion points

P8010444.JPG

P8010445.JPG

P8010447.JPG

P8010448.JPG

P8010449.JPG

[double diamond]

Frank,

Your front wheel looks more like a 200 or 175 type. All 250’s had a hub with a removable plate that is about the same diameter as the left side brake plate and houses the speedo drive mechanism. The drive gear is pressed onto the hub and the driven gear is housed in the side plate. Your hub has the small speedo drive unit that engages slots in the hub as used on early 200’s and maybe 175’s. I don’t recognize the rim manufacturer marking. I would have expected to see an Agrati Monticello rim on a Monza with Campagnolo hubs. Since this is an earlier wheel, Ducati must have been using different suppliers then but I’m not well versed in 200 specifications. Maybe some 200 experts can chime in. There’s a member on Bevelheads that knows 200’s pretty well. Also the front axle nut isn’t an original 250 type (Ducati didn’t use castle nuts) and the axle should have a pull pin in the other end. The pics of the rear hub only show the sprocket drive plate which in this case is a later type Grimeca. This type of plate would have originally been installed on a Grimeca type hub with three scalloped “fins” between the spoke flanges. But these sprocket drive plates will fit the Campagnolo hubs as well, so the hub hasn’t been positively identified yet. How many fins do you count between the spoke flanges? The engine number stamping is curious. Usually the non-suffix (M1 or M3) DM250 marking is centered in the space. Yours is offset to the left, as though it were going to be stamped with a suffix but it wasn’t. Anyway, there’s no evidence of a cover up and why would one want to eradicate an M1 or M3 marking? Were it stamped M1 after the DM250 and the 9 in the serial number were a 0, you’d have a believable M1 engine! Matt

[DewCatTea-Bob]

Some closer images for discussion points

____ Well before, I had no good reason to not assume that the front-wheel was stock,, but now, I can certainly see that the front-wheel is definitely not stock !
And while I've never been much familiar with the stock wheels employed on early 200 Duke-models, I more suspect that your front-wheel really came-off from some OTHER Italian-brand motorcycle-model.
____ As for your rear-wheel, (and seemingly in disagreement with DD), the pictured sprocket-carrier/plate is the correct (non-plain) type which was employed stock for (most all) 5-speed models, regardless of hub/drum-type -(with either 7 or 3 fins).
Your 1965-model should have the 7-fin drum.


Dukaddy-DUKEs,
-Bob

[double diamond]

The sprocket drive plates (or flanges as they’re referred to in the parts catalog) manufactured by Grimeca have the six radial reinforcing ribs. These flanges are identified as Grimeca by a “G” cast into the flange on the inside facing surface. Grimeca also cast a manufacturer identifier into the brake shoes. The Agrati-Campagnolo brake parts have a four digit number and/or a lower case “a” cast into the parts. Grimeca parts were not installed at the factory on Campagnolo hubs or vice-versa. The Campagnolo sprocket flanges were often replaced with the Grimeca flange when the Campagnolo flange broke (not uncommon) since Ducati continued to employ Grimeca parts into the 1970’s while the Campagnolo parts were discontinued in 1965. All illustrations/photos of 1965 Ducati models with Campagnolo hubs have the smooth sprocket flange; the reinforced Grimeca flanges were OE for the 1966 and later models with Grimeca hubs. Matt

[ftripodi]

Hi Guys,
Thanks for all the info on the bike.
Visited Phil from Road and Race on the weekend and he confirmed a few things especially the front rim. It is definitely another Italian hub but also identified the rims are original Sanremo rims from the markings.

Update on the parts
Taillight and bracket,chain guard and clutch lever. I have picked up.

Still need
Tool boxes, ignition barrel and key.

If anyone can assist or point me in the direction of the parts I would appreciative.

Frank