Raleigh Dyna Tech appreciation and information thread

[Boneskid1]

30mm, or 28mm if shimmed.

Great thank you!

 

[paton]

Technium the peak

 

[InFaasion]

Took it apart today and gave it a good clean. LX shifters are toast despite they look cosmetic in good condition, shifts are numb. Will try to clean them and get them back to working condition.
Seatpost was cut down to some 20 cm, stem 1 inch was fixed with a bushing to fit the 1.8 fork, not really secure

Removed all components, cable guide under bottom bracket fell of and someone tried to pinch a screw through the bottom bracket shell . Some mechanics...

Overall frame is in good condition, decals are apart from some small nicks still OK.

Fork has most marks but I found my old Mag21 is nearly same colour so as grey tubes, slightly more yellow. What do you think about adding this here?
Wheels replaced with some XT /Ambrosio and butterscotch Tioga's, another seatpost with Vetta seat, non branded stem and True Temper bar.

Question for the "sharkfin": this came with this frame but is a Proline. Material is softer compared to the XT fin and slightly different shape. Is this original? Don't see this in any folder.

 

[Walterscot]

Built up this 1992 Ogre as close to catalogue spec as I could manage. Too small for me but I can still tell it’s a belter of a bike to ride.

 

[Mark south wales]

dug out my Dynatech tonight, should have been going to the retro bie show in gloucester and pulled my shoulder out. so heres a little video, instead

 

[Mark south wales]

any one have a pair of u.g.l.i forks for a diablo stx? i chucked mine years ago, after bending them, put a crease in the boss, so they would have always been weak after, might fit a set of spinner, if i can`t find one.

 

[averagebiker]

Anyone know the seatpost diameter for Dynatech Road bikes? The restoration of my 1994 Corsa 405ti has begun and I am not sure the seatpost it came with is original/correct.
Cheers

 

[Markybeau]

it varies depending on the year and the material, most of the mt3 - mt4 range with tims titanium is 28.4mm. spme of pro range, like my 2070 tt lo-pro, with reynolds 653 has 28mm. some of the later mtrax range has larger 31.2mm... the mtrax 27.5`s and 29ers are 31.8mm .. how ever for yours, id say would be same as an mt3/4 28.4mm, anybody else, want to add anything?

MT4 is 26.4 -26.6mm. They take a 28.6mm front derailleur. Although this is not helpful to the OP. Best not to confuse internal with external measurements.

Post in thread '1992 Raleigh Dyna-Tech MT4'

Feb 10, 2024

Seatpost size test to end any speculation. Working on the basis that it could be anywhere between 26.8 and 26.4 I assembled three to try for size;
26.8mm XT post
26.6mm Kalloy post
26.4mm Post Moderne post



It’s worth noting that there is clear ‘step’ at the very top of the seat tube where the lug(?) wraps the the titanium tube - and this gives false hope that a larger seatpost is going to fit.



First up, the 26.8mm Deore XT post; enters the lug without issue - but that’s as far as it goes;


Second up, the 26.6mm Kalloy post; again no problem...

• Once A Hero

• 

@averagebiker your best bet is using a vernier / micrometer.

 

[Mark south wales]

MT4 is 26.4 -26.6mm. They take a 28.6mm front derailleur. Although this is not helpful to the OP. Best not to confuse internal with external measurements.

Post in thread '1992 Raleigh Dyna-Tech MT4'

Feb 10, 2024

Seatpost size test to end any speculation. Working on the basis that it could be anywhere between 26.8 and 26.4 I assembled three to try for size;
26.8mm XT post
26.6mm Kalloy post
26.4mm Post Moderne post



It’s worth noting that there is clear ‘step’ at the very top of the seat tube where the lug(?) wraps the the titanium tube - and this gives false hope that a larger seatpost is going to fit.



First up, the 26.8mm Deore XT post; enters the lug without issue - but that’s as far as it goes;


Second up, the 26.6mm Kalloy post; again no problem...

• Once A Hero

• 

@averagebiker your best bet is using a vernier / micrometer.

yup, i`ll delete my post now, to avoid confusion, as you rightly say

 

[Mark south wales]

IIIIIINNNNNN COMING! watch this space!!!! mega rare odd ball, Dynatech XC80