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Renovations are not all about period correct date coded components. w=684" class="size-full wp-image-2469" src=" w=750" alt="My TI-Raleigh Specialist Bicycle Development Unit SBDU Ilkeston Frame Details" srcset=" TI-Raleigh Specialist Bicycle Development Unit SBDU Ilkeston Frame Details " data-medium-file=" w=200" data-large-file=" w=750 750w, w=100 100w, w=200 200w, w=768 768w, w=684 684w," sizes="(max-width: 750px) 100vw, 750px" / The image above shows some of the details used over the life of the unit.

As the timeline progresses, the scalloped design becomes linked with earlier 531 frames and is one of the first key identification details between 531 and 753.Fork ends so far have been Campagnolo 1010/A – long horizontal dropouts without eyes.This page from a later Campagnolo Catalogue displays the range. w=616" class="size-full wp-image-2485" src=" w=750" alt="Campagnolo Fork Ends My TI-Raleigh SBDU Ilkeston" srcset=", w=750" class="size-full wp-image-2486" src=" w=750" alt="4 Slot Bottom Bracket Shell My TI-Raleigh SBDU Ilkeston" srcset=" details were used predominantly with certain tubing types while some crossed over tubing types and across different years.I’ve grouped my timeline into ranges of ‘SB numbers’ rather than ‘Year Built’.These frames span the start of the SBDU in late 1974, to post Ilkeston SBDU bikes built under the SB prefix after the SBDU move to Nottingham from 1987.

I’ve looked at the TI-Raleigh Yahoo site, my own diverse collection and other Internet sources, examining and logging their frame details… 200 frames is however only a very small percentage of the total amount of frames built by the SBDU – approx 8400 were made at Ilkeston and over 1000 more were made at Nottingham.

The amount of different details they used means that this post may turn into an epic.

I did consider splitting it into 2 smaller posts, pre and post 1980, but as this is ultimately a timeline post, I wanted it to be unbroken, and to start and complete in one go.

Frame details…, it is all about those little frame details… They are individual elements, fitted to tubes and formed into a frame when the torch melts the filler.

Paint and decals are not the same, they can change over time, fooling you and misleading you with a different story…

The most significant thing to change at some point in this period is the SBDU switch from Yellow to Black head tube.