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Moohan`s diamondback!

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moohan:
Right guys i have started on the slippery slope of restoration on my diamondback, firstly the serial number anyone got any idea what this means   OJ - 1084 , it has the baseball after the number which i believe to be from japan/taiwan , it`s a looptail, no chainguard tabs , i got it for free from a guy i know on another forum (american muscle cars) ithas ukai rims , mx 1000 diacomp break calipers , suntour stem and an tange seiki 329 headset.

according to kowalski he thinks it might be a `cannondale raven` but i dont think he knows what he`s talking about unless it`s redline or prolite    :LolLolLolLol:

Anyway im going to attempt to post some snaps so bear with me.

Also any advice on the rebuild will be most appreciated.

kind Regards Bryan




IMG]http://i196.photobucket.com/albums/aa69/moohan70/jeffsandbmx019.jpg[/IMG]

moohan:

moohan:
i think iv`e found out what it is by looking on retrobsession.com he has one on there with a similar serial no. begining with oj , it appears to be a 1981 senior pro


Manufactured by Koisumi (Japan). Serial number located on rear dropout, prefixed with either 9,0,1 or 2 and ended with a baseball symbol. Handlebars stamped 'CHOMOLY DIAMOND BACK'.

Additional information

Year of manufacture:

Senior Pro: 1979 through 1982
Med Pro: 1979 through 1982
Mini Pro: 1979 through 1982

Specifications:

Senior Pro - top tube of 19" or 19 1/2"

Medium Pro - top tube of 18" or 18 1/2"

Mini Pro - top tube of 17" or 17 1/2"

Availability & Build:

The Pro series were labelled up with 'CHROMOLY' decals on the chainstay
The Med Pro was the only one of the 3 available in Chrome, Blue or Red, known as "Sizzling Red" & "Electric Blue".

The Senior Pro & Mini Pro were only available in Chrome, the catalogue only states/shows Chrome yet the Med shows/states 3 options (79/80 catalogue).

The Pro series used DB 3pc cranks.

The Med Pro was the only one of the 3 sold as a complete bike or just a F/F due to it being the most popular of the 3 sold.

Senior & Mini Pro were only available as a F/F & had to be built by you or the shop (At least in the US).

NB - The Mini Pro had shorter fork legs & shorter frame dropout lengths, the Senior & Med were the same length as each other.

The Pro Kit series didn't have chainstay decals (Kit series meaning you could choose colour options for the parts & either 1 or 3 pc cranks).

The Pro Kit series with 3 pc cranks used Maxy Cross cranks.

The Red snake decals were used on 79/80 models, whereas the blue/prismatic style were used on 81/82 models.

Diamond Back stopped manufacturing the Pro series in 1983, with the last model rolling out in 1982.

Geometry:

The Pro series geometry is very specific compared to any other DB, which makes it the best along with an 82/83 Harry Leary Turbo. Ttheir geometry almost identical probably because the Harry Leary was based upon the Senior Pro.
 
The Pro series bikes used the same geometry for all 4 years the bike was manufactured probably due to the fact that it worked best & fit the riders.

The Senior Pro seat tube angle is almost 90 degrees to the box.

Serial Number formats:

Sr Pro serials should have a baseball symbol & start with the # 9,0,1,2
If it starts with any other # then it's not a Sr Pro,they were only made between 79 & 82 with the very first # being the year: 9=79,0=80,1=81,2=82

moohan:
This is the serial no. of the bike he has  s/n 0J-2012

kowalski:
 :LolLolLolLol:
good one bry loving the cut and paste from another site thanks for all the info
not sure if its a cannondale now i dont think the raven came with sticks of brighton rock stuck in the front spokes
anyhow good luck with the resto and if you give in early can i have first dib dobs on the kashimax aero????
 :daumenhoch:

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