THE RALEIGH TWENTY

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Newpin, and three R20 forks. UK source.

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Newpin, and three R20 forks. UK source.
Thought I'd make a little comparison. Blue: 1960's Newpin. Green: 1970 R20. Maroon: 1980's R20. Red: R20 with reduced rake (more than - 15mm). All steerer lengths are the same +/- 1mm. Two have been cold set to 100mm OLN. Note that the later (maroon) R20 fork is wider at the crown by almost 10mm. I haven't used the red fork (yet) as I overcooked it on the press a little, making the brakes a reach too far. Interesting to note that the old Dawes fork has lugged fork ends, I wonder if this is general? Also worth noting that the rake of the Dawes fork is the largest. Fork Rake for the two standard R20 forks was measured at 55mm, and the modified red item was 37mm.
Posted by hovvard on February 27, 2019 Full Size|

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3 Comments

Reply melofelo
3:58 PM on March 16, 2019 
The earliest Kingpins were released a couple of years before the Twenty so Dawes refined their production methods slightly on the Kingpin frame from the very earliest models ( around 1965/66) up to around 1968 by which time a few aspects of the first frames were subtly modified . Early details which were changed include the front fork dropouts, external cable guide braze ons were substituted by frame clips and evenutally internal routing, very early bearing races which were 'pressed' into the steerer tube metal itsself gave way to separate chrome inserts top and bottom and the early chainguard was changed also. Beyond that , the Dawes manufacturing quality remained pretty much consistent with the later Raleighs throughout the 70's. I guess Raleigh had the benefit of hindsight when opting for a thicker main tube which many prefer as a basis for a modified ( and more rigid ) shopper bike upgrade project but the standard threading and bottom bracket length of 68mm on the Kingpin also has some advantages for component upgrades. Both bikes are great in my opinion, whether customised, preserved in original form, restored to former glory or just used as intended..a cheap and reliable commuter. Enjoy! :)
Reply hovvard
1:39 AM on March 9, 2019 
melofelo says...
The early kingpins had separate fork axle dropouts..I think they switched to the standard pressed tube dropout around 1968 ish

Thanks for info, interesting that Dawes made their bike cheaper and in my opinion inferior, and Raleigh improved theirs, in this way, some dozen-ish years apart. I prefer the mudguards mounted separately from the wheel axles, which is the case with the brazed in lugs (blue and maroon forks above). Many remove the 'guards, so I guess this doesn't matter to them.
Reply melofelo
5:52 PM on March 5, 2019 
The early kingpins had separate fork axle dropouts..I think they switched to the standard pressed tube dropout around 1968 ish