This bike was briefly featured in my recent ‘chuck-out-a-thon’ post having been unceremoniously cast out minus the wheels, all oily-gritty and rusty.
I was intrigued, as it has an “Australian Made Frame” decal on the seat stays. It is a large framed hybrid, ( 62cm seat tube C-C, 60cm top tube C-C ), and I haven’t found much on the web about ProTour except that they seem to have been made late 80s to early 90s by Southcotts in Adelaide.
Protour is one of those names that turn up a lot of unrelated rubbish when googled, as you can imagine ! Most of the information came from the cycling forums, with someone suggesting there was a tie in with Ricardo somewhere. South Australia seems to have had a lot of bicycle history happening in the 80s and 90s !
Being a hybrid it had flat bars, a riser stem, and I would assume once wore 27″ wheels, from the brake pad locations. The Suntour Accushift 6sp. thumb shifters are rather plasticky and won’t be re-used. Some band-on Suntour down tube shifters are shown below. Crankset was a fairly heavy steel ringed, alloy cranked ( and worn out ) Sugino “Proto” c.52/40T.
Front Derailleur is a nondescript Suntour, the rear a medium / long cage Suntour XCM ( MTB ). Brake callipers are recessed ProStars in black. Seat pin is 26.4mm dia. and an italian Vetta saddle was fitted. None of this is of much consequence, as it’s the frame I’m most interested in, for it has the ‘feel’ of decent quality about it.
The tubing decal is missing from the seat tube, but I’m guessing from forum comments it may be Tange 5 plain gauge cr-mo or a higher grade Tange chromo steel. Some forums say Protour used Mangalloy steel, similar make-up to Reynolds 531, (?) I am only guessing here …
The frame would definitely benefit from better components. I see it as a comfortable longer distance ride, and will also set it up with some hill climbing ability in mind. The large frame on a bike like this means ( for me ) a comfortable riding position with higher bars due to a low relative saddle height. ‘Experts’ might tell me it’s too big, but from my experience with the refurbished Giant Boulder 550, I think it will be just fine even with the flat-footed stand-over residual height at zero.
Frame angles look on the steepish side so it should be responsive and yet it will have no toe overlap ( I checked ! ). Large frames like these don’t always make the most graceful looking bikes though.
Typically for a chuck-out it has 126mm rear dropouts (5/6/7 speed) and a 95mm front dropout width (damn that 5mm). At least they are forged/cast dropouts. The fork had the word ‘Falter’ stamped faintly on the stem. The serial number on the BB shell begins with ’90’ so I assume that’s its year of birth.
I fitted a new VP head set, re-tapped the BB threads and put in a Shimano UN-55 113mm cartridge BB. Cranks are now recycled Shimano – early105, ( FC-1050 ) 170mm. Chain rings are new, T.A. 49T + 38T, from Wiggle UK.
These are marked 9/10 speed and I wasn’t sure how they would go with a 7sp. Cluster and an 8sp. chain … luckily it’s friction shifting ! I had to fit thin spacers between the spider and the inner ring to stop the wider chain scraping on the outer ring. They now work well, but I won’t try this trick with index shifters !
The freewheel cluster is a 14-34T Shimano 7sp. ‘Megarange’ but I can’t use the 14T at the moment, because it won’t let the chain clear the chainstay. To prevent this happening I adjusted the ‘H’ stop screw on the rear derailleur to end its travel at 16T, but this needs further investigation.
The 38T is about the smallest front ring that will fit a standard Shimano road 130mm BCD spider and combined with the 34T megarange rear gives a pretty low bottom gear ( at least for a double chain wheel ), albeit with the next lowest rear cog being 10T smaller at 24T. Shifters are Suntour band-on down tube, and sit on the little ‘heart’ where the cable stops once were.
49×16 is not a high top gear for a road bike, but they are 27″ wheels at least, so i’ll wait for a test ride to see whether it will spin out too easily down hills, etc.
I fitted some new Jagwire cables and borrowed the Genetic bar/stem from the Shogun Samurai with the Cane Creek levers – as that bike is due for a re-assessment. The two-tone paintwork had a lot of rust spots which I neutralised, and I did a bit of touch up spraying.
I confess, it’s a bit rough in places !
Instead of recycling and fitting the black Pro Star original callipers, I used some Tektro R539 dual pivot recessed that I happened to have – for a bit of shine ( and better stopping ). Wheels are the Araya 27″ anodised front one from the L.A. 84 and a Suzue sealed tech 126mm on the same type of Araya rim rear.
It’s getting harder to find decent 27″ tyres and at the moment these are reasonable Kendas, but I would prefer something like a 27″ Gatorskin pair ( I only have one of these right now ). If this bike goes really well then a lighter pair of wheels/tyres may be in order ! Lastly, I fitted some Metallic Blue fizik bar tape, before taking it for a spin …
I think it rides more smoothly than the Giant 550, and it’s very comfortable. Reckon I could ride this one all day with the B-17 under my bum !
Happy Retro Re-Cycling !