Frame Example Photo - Source: VeloBase User abuhugh 
|
|
|
| Example Model: | Gran Prix |
| Brand: | Bob Jackson |
| Frame Model: | Bob Jackson Gran Prix |
| Category: | Road Sport |
| Years: | 1992 |
| Built In: | England |
| Weight: | |
| Production: | Individual Hand Built |
| Sold As: | Bare Frameset |
| Material: | Steel |
| Construction: | Lugged |
| Drivetrain: | Derailleurs |
| Wheel Size: | 700c |
| Added By: | abuhugh on 09/21/12 |
| Updated By: | abuhugh on 09/21/12 |
|
| Construction | Lugged | Bottom Bracket | English/ISO: 1.370 x 24 |
| Wheel Size | 700c | Brake Mounting | Recessed |
| Rear Dropouts | Campagnolo | Seat Stays | |
| Main Tubing | Reynolds 531c | Fork Tubing | Reynolds 531c |
| Brake Bridge | | Fork Style | |
| Derailleur Cable Routing | Brazed-On over BB guides | Brake Guides | 3x Double Loop style on top tube |
| Fork Crown Style | | | |
This is my 1992 Bob Jackson Grand Prix, fresh back from BJ after a refurb. I bought this as an off-the-peg frame and forks in early 1992. It is standard except that I specified the addition of mudguard eyes (though I have never actually fitted mudguards). It is 21.5", 73 degree parallel, built in Reynolds 531C tubing. Paint scheme is BJ 'golden yellow' enamel. It was originally finished in BJ 'bright yellow' enamel, but I decided to tone it down a bit. It is now fitted with BJ's own metal headbadge, a relatively new option from Bob Jackson. The original headbadge was a transfer, so this feature is not period authentic. This frame spent most of its 'working' life fitted with a mixture of Campag Record/Campag Athena and Shimano 600/Ultegra components. It is now rebuilt with a full 1992 Shimano 600/Ultegra 'tricolour' groupset (64** series), which was the spec offered at the time by BJ for this model when sold as a complete off-the-peg bike. Tyres, however, are modern (my enthusiasm for authenticity does not extend to having frequent punctures). And, yes, I do realise the 60mm tyre valves - fitted pro tem - are OTT.
|
| Head Badge |
 | |
