Mi-Val Carb Upgrade

Earlier this year, we featured the restoration of a mid-1950s Italian two-stroke 125. Since then, Stu Thomson has been riding around on it and getting it fettled. Here’s what needed tweaking during the Mi-Val’s extended shake-down… When I rebuild a bike I ride it, and try to improve the way it rides. Petrol has changed quite a bit since these…

Classic Techniques: Superblend bearings, part three

Andy Heathwood has been exploring the history behind Norton’s ‘Superblend’ bearing as fitted to their big twins in the 1970s. Now he turns to current concerns. Which readily available bearings are recommended today? It follows from the evidence presented already that although the latest FAG bearings are ‘well up to the job’, bearings from other established suppliers made to modern…

Classic Techniques: Superblend bearings, part two

Last time, Andy Heathwood introduced us to Norton’s solution to main-bearing problems in their big twins, back in the 1970s. Now he reveals whether ‘Superblend’ bearings were actually anything special. What’s in a name? Were Superblends something different? For their time and for this application the answer is probably ‘yes’. I am indebted to Anthony Curzon who has loaned me…

Star Tron Tested

A while back, the lovely Daisy from Wemoto dangled a sample of Star Tron as us and said ‘psst, wanna try some of this?’ Not wanting to appear utterly unhip and under-informed, we immediately agreed although we didn’t really have the foggiest idea what Star Tron might actually be. Something to help Start Ron in the mornings, maybe? Tch. Silly…

Braking Bad

In the February issue of RealClassic, Dave Bushell noted that ‘my pre-war Scotts and, I think, most girder-forked machines, have their front brake arms facing forward from the pivot point. My post-war Scotts with telescopic forks have them facing rearwards, as do most other makes with some exceptions. If forward facing brake arms provide better braking, why did manufacturers reverse…