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 again I see that it can be impossible to correlate frame weight to frame size to frame tubing.
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 like a conventional SBDU road bike, but then again, SB time trial frames can look like conventional road bikes too; and with vertical and horizontal ends as options on both types, it is ultimately down to geometry to unravel the puzzle.
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 brushed on rust treatments with other paint drips and garage related debris including several cobwebs. I was sure when I bought this bike that I could breathe some new life into it. This is the first step…
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 problems, and now was the time to open the toolbox and see what was in store for me.
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 and some shared pictures, I ended up agreeing to buy it. SB7393 is an original paint SBDU bike built with Reynolds 531 Professional tubing and spec’d with a great selection of parts… and best of all, it is my size, 57cm.
The search terms used by people who reach my blog are often connected to searching for information about the weight of a frame, specifically Reynolds 753 and Reynolds 531. So I thought I would write a little post to show the weight information I’ve collected on my own frames. I have frame weight data on several SBDU frames across a range of Reynolds tube sets. What I’ve found is that it isn’t simply a case of saying that every 57cm Reynolds 531 frame will weigh the same. Lots of factors influence frame weight.