I have written hundreds of posts about the SBDU, their frames and a few other random topics. Have a browse, scroll through the pages, click the links and have a read of my SBDU Blog.

A MAVIC Build Update – SB7393 Raleigh SBDU Ilkeston 1985 Reynolds 531 Professional
SB7393 is a 1985 Reynolds 531 Professional SBDU bike that I picked up last year. Since then I've slowly been putting together the missing pieces of the MAVIC puzzle to get this striking red and anthracite coloured Ilkeston bike back on the road ...

TI Raleigh UK Team Bike G4582 ‘D R’ Dave Rollinson 1972 MKIV Professional – New Arrival
I'm definately dipping my toes into the unknown with this one. This MK. IV Raleigh Professional frame is a break from the norm for me. After seeing it pop up on Hilary's Facebook feed, the part of my head that normally tells me to hit the button and buy stalled ...

The SBDU Fast Back
Although an SBDU frame may be best known for the oversize seat stay cap design, it was the SBDU fast back that landed with a bang towards the end of 1982 that almost took the top slot. These are my thoughts, backed up with some data, about the SBDU fast ...

Featured Frames – The Pick of my TI-Raleigh SBDU Collection
Did you know I have a "Premier League" of frames within my SBDU collection? I call the lucky ones that make it into this league my 'Featured Frames'. I have a full list here. The competition is real and it's always a tough call about what I feature in this ...

TI-Raleigh Team Cees Priem (CP.1.79) Reynolds 753 Road Frame – New Arrival
It's amazing what can happen in a matter of minutes. I had my feet up, relaxing on a Sunday morning, doing nothing much at all other than trying to figure out what to watch on television. Then an email containing a link to a frame dropped into my inbox. I ...

My SBDU Collection… What’s Been Happening Recently?
It's always nice to sit down and have a think about where my SBDU collection is and to plan where it is heading. That might sound ridiculous as these are only old steel bike frames, but writing about them does keep me on track and helps me to focus, so ...

SB4944 1982 SBDU TI-Raleigh Reynolds 531SL Aero
An SBDU 531SL Aero frame? SB4944 was an impulse buy from quite some time ago. I saw it listed on Hilary Stone's site as an SBDU frame built from Reynolds 531 Professional tubing. The serial number and the date that number indicated together with the repaint showed it was actually ...

SB2589 Raleigh Ilkeston SBDU ‘Special’ Reynolds 753 1978 Road Frame – New Arrival
I've bought a few frames from Hilary Stone over the years. He's been the source for some of my best featured frames such as SB4409, my Dynaflite - an SBDU Special, and SB8790 - my unridden low profile frame. He also supplied SB9529 - a low profile Dyna-Tech and SB4944 ...

My TI-Raleigh SBDU Forum Members Image Galleries
In a previous blog post I introduced the new TI-Raleigh SBDU forums which are part of a larger 'Community' project that I'm building. At the same time I mentioned another task that I was working on. That was to add the functionality for forum members to upload image galleries. Well ...

SB3235 Raleigh SBDU Ilkeston Reynolds 753 1979 Road Frame – New Arrival
My site has taken over all of my spare time recently. I've been expanding it so I can let people in, creating an area that others can take part in. While I've been beavering away behind the scenes, I've also kept one eye on what's available. SB3235 popped up at ...

A New TI-Raleigh SBDU Forum
I must be slightly mad for creating a TI-Raleigh SBDU Forum, this has the potential to really increase my blog workload! But I do think this needs to happen and now is as good a time as any to do it. The forums are part of a Community area I'm ...

Imperial Diameter Tubing Reynolds 753 Raleigh SBDU Ilkeston 1978 Road Frame SB1995 Seat Pin Size
My previous post turned up a couple of surprises about SB1995. The first, smaller surprise, was the owner's initials on the fork. The bigger surprise was the Imperial diameter tubing. SB1995 reinforces my belief that SBDU frames can be read like a book, but like a good book, it can ...

Metric Diameter Tubing? Reynolds 753 Raleigh SBDU Ilkeston 1978 Road Frame SB1995
"Never assume with the SBDU". That is a phrase I say a lot. It is a mantra I repeat when I'm assessing SBDU frames and bikes. Winding the clock back to 1978 you would think it was safe to assume that the Reynolds 753 tubing type on your frame would ...

Reynolds 753 Raleigh SBDU Ilkeston 1978 Road Frame SB1995 – Renovation Date
Recollections are a funny thing. Could you remember details or be precise about a specific date from maybe only a month ago? Could you remember a detail from ten years ago? How about four decades ago? Memories become fuzzy with the passage of time. The brain forgets, and confusion prevails ...

SB1995 Raleigh SBDU Ilkeston Reynolds 753 1978 Road Frame – New Arrival
It was a Thursday evening a couple of weeks ago, and as usual I was sitting in front of the laptop, half watching TV half browsing the internet, when a flashing notification from a new email caught my eye. A quick scan of the first line and reading the words ...

Sorting, Arranging, Displaying – Finally Seeing the Efforts of my SBDU Obsession
I've been collecting for years. I can go for what seems like a lifetime without a new addition while at other times I seem to have new frames coming through the door every week! But while I've been busily collecting, I've never actually done much with these beautiful bikes and ...

SB1861 1977 SBDU Ilkeston TI-Raleigh Team Pro Reynolds 531 – Back in the Workstand
A lot has happened since this bike last graced my workstand. I've just checked through my posts and I last mentioned it in July 2017. Lots of frames have come since then and life itself has generally been busy, so SB1861 was moved to a spare room to wait patiently ...

For the Love of the SBDU. Building a Collection and Writing a Blog
I guess it's a passion... it didn't start out like this and I never intended it to be like this, the blog just grew quietly, and then it gathered pace, and then it snowballed and before I knew it I was helping people around the globe. I was learning stuff ...

My TI-Raleigh SBDU 2019 Projects: SB518 1976 Reynolds 531 Road Frame
SB518 is the third frame I have lined up this year to be painted in the TI-Raleigh colours (it's nice to start the year with a plan). This is a solid frame and has no issues or rust, it needs no frame work and is perfect for a renovation. By ...

My TI-Raleigh SBDU 2019 Projects: SB632 Reynolds 753 Track Pursuit Frame
I have a few 2019 projects to complete and this is the second such project that happens to be a track frame and the second that needs to be brought back to it's original TI-Raleigh appearance. The first project I mentioned for 2019 was to repaint JR178T, my Jan Raas ...

Roy Schuiten GP Lugano and Grand Prix des Nations 1975 TI-Raleigh Bike
Back in March 2018, a short but interesting email dropped into my Inbox... I am the son off Roy Schuiten. I recently found a time trial bike off my fathers. I want to share some pictures and thoughts with you. Rob Schuiten 24th March 2018 That was it, short and ...

My TI-Raleigh SBDU 2019 Projects: Jan Raas JR178T Reynolds 531 Double Butted Track Frame
This frame has eventually made it to the top of my list of projects. This is a Jan Raas frame and it has waited too long; the yellow Chesini paint and transfers have to go and the classic TI-Raleigh colours with detailed Fischer fork crown and Carlton Capella lugs have ...

A Review of My SBDU and TI-Raleigh 2018 Ramblings
Last year took a very different direction to 2017; that year was all about snapping up everything I could find, and 14 frames was clear evidence of that eagerness. All I remember from 2017 was the expense and the amount of blogging required. But from the outset of 2018, it ...

Motor Paced Stayer – Could it be a Jan le Grand Build for TI-Raleigh Rider René Pijnen
I'm going to make a bold statement right at the beginning of this blog post... my theory is that this Stayer frame could be a frame built by Jan le Grand for TI-Raleigh team rider René Pijnen - now all I have to do is use the rest of this ...

A Mysterious Motor Paced Stayer Frame – New Arrival
Every now and then I spot something slightly different, something that I struggle to identify but which has the potential to be something nice, maybe even special. Usually I might be the only one to spot it which normally gives me the luxury of a little time to do some ...

SB8790 1987 Raleigh SBDU Nottingham Reynolds 531c – Model Classification
When I add a traditional horizontal top tube SBDU bike to my collection it can sometimes take a few careful measurements and a little bit of knowledge of the bike's history to figure out something as subtle as whether it was built for road racing or time trials. The obvious ...

SB6560 531c Services des Courses 1984 SBDU Ilkeston Raleigh – Fork Restore
While I'm patiently waiting for the final few Dura-Ace 7400 series 6 speed components to arrive, I'm going to begin the paintwork restore on SB6560, starting with the fork. The fork on SB6560 isn't too bad at all but it has a few marks and scratches that would look better ...

SB8200 1986 Raleigh SBDU Ilkeston Reynolds 531c Randonneur – New Arrival
I haven't written many 'New Arrival' posts this year after slowing down my collecting habit and being a bit more picky, so it really is nice to get a new frame on the workbench. An astute eBay bid, a couple of messages followed by a few hours drive and SB8200 ...

My Specialist Bicycle Development Unit Wanted List – An Update
Over the years since bike number one arrived (SB4059), I've continued to look at what I'm collecting and I've tried to add frames that plug any gaps that my collection has. It's been nearly three years since I last wrote about my "wanted list", so as 2018 is coming to ...

Buying a Specialist Bicycle Development Unit (SBDU) Bike with Confidence
I always find this topic a sad one to write about. I get sad when I know that someone is spending money on a bike that may not be what they think it is and I could have helped to provide some info if only I was asked. That sad ...

The Tools of My Trade – A Tour of my Workshop
I always get nice comments about my work space. It is often commented on when I post bike images. So I thought I'd write quite a self indulgent post and show a few images of my tools and work space for a change instead of the bikes ...

Frame Weights of Specialist Bicycle Development Unit (SBDU) Reynolds 753 and 531 Frames
Frame weight... it's often talked about, requested and used as a measure to try and determine tubing type. From my own experience I can see several factors that affect final weight and I frequently see through my own documentation process that frame weight can be very random and time and ...

SB6560 531c Services des Courses 1984 SBDU Ilkeston Raleigh – Planning the Team Colours Transfer Layout
SB6560 arrived in terrible condition with missing gear lever bosses and poorly applied transfers. It is a frame that has always been overlooked and put on the back burner while other projects came in and took over. Underneath the skin however, it is a lovely 531c SBDU Services des Courses ...

Shimano Dura-Ace 7400 6 Speed Rear Derailleur My Favourite Piece of Kit
What do you call it? Do you say Rear Derailleur, Rear Mech, Rear Mechanism, 'Mech' or just 'Gears'... they are all names to describe the mechanism typically controlled by a spring and cable that derails the chain and moves that chain out of one gear and into the next. I'm ...

Raleigh Frame Numbers 1973 Onward. Worksop Carlton and Nottingham Lightweight Unit Frames, Specialist Bicycle Development Unit (SBDU) and Raleigh Special Products Division
This isn't intended to be an Internet resource of Raleigh frame numbers! If you are reading this for anything other than SB number sequences from the SBDU then please make sure you corroborate my information with other resources. This post covers the background of things I've learnt about Raleigh frame ...

SB8790 Raleigh SBDU Nottingham Reynolds 531c 1987 Lo Pro Road – New Arrival
Emails dropping into my Inbox on a lazy Saturday afternoon are quickly becoming the best kind of email! The one I received last Saturday offered a mint condition frame together with it's original Raleigh box and some documentation! Now that is an offer that needs serious consideration. The images came ...

SB7393 Raleigh SBDU Ilkeston Reynolds 531 Professional 1985 – Geometry and Design
Time Trial frame? Road frame? Or a bit of both? What exactly is it? SB7393 came with a story that it was built and used for time trials and ridden by a junior. I was also told by Rob, the previous owner, that it was a "lively" ride! It looks ...

SB4059 SBDU Ilkeston 1980 TI-Raleigh Team Pro Reynolds 753 – Seat Lug Thread Repair
I'm gradually working my way through the snagging list on SB4059, all those little jobs that I know about and that require attention are slowly getting done. Not so long ago I swapped the original Campagnolo grey outer brake cables for original Campagnolo black alternatives, and I also updated some ...

SB7393 SBDU Ilkeston Raleigh Reynolds 531 Professional 1985 – Paintwork – Part One
When you have a get a good look at the paint on SB7393 you can see that it isn't the best. Although it is all there and from a distance it looks ok, there are one or two areas of rust, the paint is dirty, flat and covered in previous ...

SB7393 SBDU Ilkeston Raleigh Reynolds 531 Professional 1985 – Stripdown
Now that Eroica Britannia is out of the way and work on SB4059 is complete (for now), I can turn my attention to looking at SB7393. This is a complete Reynolds 531 Professional SBDU bike that I bought a couple of weeks ago. Each part of this bike could cause ...

Eroica Britannia 2018 – My TI-Raleigh SBDU
I've planned before and never got there, I've bought a ticket before and never got there, but this year I actually did get there. Karen and I booked up, bought tickets, sorted parking, arranged an Airbnb nearby in Buxton, packed the van and headed out on the three hour trip ...

SB4059 SBDU Ilkeston 1980 TI-Raleigh Team Pro Reynolds 753 – A New (and Correct) Look
It has been a long couple of days but I've finally completed this small and difficult project to bring SB4059 up to spec in terms of a 1980 period SBDU TI-Raleigh transfer scheme. Deciding to go for it and wreck the paint on a perfectly good frame meant that there ...

SB4059 SBDU Ilkeston 1980 TI-Raleigh Team Pro Reynolds 753 – Removing Transfers From Underneath Clearcoat – Part Two
I think I must have been slightly bonkers to start this project but the desire to get SB4059 looking correct was too much! That morning when I took a knife to the clear coated transfers left me with a lot of work and once started, I had no option but ...

SB7393 SBDU Ilkeston Raleigh Reynolds 531 Professional 1985 – New Arrival
Another email, another road trip, another bike. I was sitting with my feet up on holiday at the end of May, just relaxing and watching the boats go by on the Norfolk Broads, when I received an email asking for a valuation on a bike. After a few more emails ...

SB6827 SBDU Ilkeston Frame Transfers – Testing My Own Data
I've recorded and blogged what seems like an amazing amount of detail relating to SBDU frames over the years and I've always strived to make everything I publish as accurate as I can. It has been a goal of mine to keep assumptions, unchecked facts and internet myths off the ...

Specialist Bicycle Development Unit (SBDU Ilkeston and Nottingham) Gear Lever Positioning
Following on from my previous blog posts about SBDU fork ends and seat stay caps, here is another short post in a series I'm writing about individual areas of SBDU frame design. This time I've chosen to write about gear levers, or more precisely, where they are positioned on the downtube ...

SB6827 SBDU Ilkeston Raleigh Reynolds 531c 1984 Road Bike Unridden Condition – New Arrival
Sometimes when I see a bike that someone else owns I feel a little pang of jealousy, I can't help it. And that is exactly how I felt nearly two years ago when I was first sent images of SB6827. The images were of a beautiful SB bike, it was ...

Specialist Bicycle Development Unit (SBDU Ilkeston) Seat Stay Design and Seat Lug Attachment
You probably think seat stays are quite boring, why on earth would I devote a blog post to the two narrow tapering tubes on the back of a frame? Well as you hopefully all know by now, I do like my details, especially the small details! The various designs and ...

SB6560 531c Services des Courses 1984 SBDU Ilkeston Panasonic Raleigh – Planning a Build
I currently have six or seven or maybe even eight or more projects and builds happening at the moment. But lots of projects means lots of money, and that is something that is thin on the ground at the moment. Shhh... I've been saving for something rather nice so my ...

SB4059 SBDU Ilkeston 1980 TI-Raleigh Team Pro Reynolds 753 – Removing Transfers From Underneath Clearcoat – Part One
I wasn't planning to do this job today, it just happened. I'd been thinking for the past week about how to tackle the task of removing the transfers from SB4059... the problem is that they are sealed under a good layer of thick glossy clearcoat. While I was standing in ...