RobbieTunes

+1, though I'd rather use the voltage for a boat....

cjenrick

Up post it says the SR Triathalon is the same bike as the Maxima, and that the Triathalon name was used in 1983 and switched to Maxima in 1984.

We have an SR Maxima here that was made in 1983 according to the serial number.

Thanks to all the great info posted on SR, the Maxima/Triathalon frame is a magic fit for this rider.

Note that the Semi Pro came in 53, 55 and 57 cm, where as the Maxima came in a 56 cm.

T-Mar

It was common practice for manufacturers to start building the new models around September, to allow for inventory build-up, trans-oceanic shipping, customs clearance, distribution, etc. That date wasn't cast in stone and we've lots of cases where new model manufacturing commenced even earlier. So, having 1984 model that was built in 1983 is no surprise.

dddd

I have long been curious as to the development of triathlon-specific frame geometry.

I have early-to-mid '80's triathlon bikes like the Bridgestone Grand Velo 4000, a MacSteel-tubed Polchlopek, and a Zunow, and all three feature very short top tubes with very steep seat tube angle and very slack head tube angle.
These don't handle well with the longer stem length that I require to fit these bikes.

And I have a Bridgestone "Triathlon Al" that's from ~1982 that has bog-standard road racing geometry.

I also noticed that when Peugeot redesigned the U08-9-10 models with Carbolite frames in 1979 that they definitely steepened the ST angle and made the HT angle slacker. I felt this was for the better on these bikes, as the bikes felt more sporting and were more sporting during spirited riding.

cjenrick

There is a post upstream about steeper seat angles being better or Triathletes, having to do with a more quad orientated pedal stroke.

Since these athletes run a lot, they tend to develop muscles a little differently than a pure cyclist.

Having a frame that suits your muscle culture can mean less pain.

Ever notice how it hurts to go from a road bike to a mountain bike?

I would have thought that a Triathalon bike would use touring angles to make the rider more comfortable and to also provide a more stable geometry for a tired rider.

dddd

While a rider might be quite tired after coming out of the water, and the forward ST angle better supports harder pedaling when the bike has a rode bar on it, for these triathletes I believe that aerodynamics plays a bigger part in preferring the steeper seat tube.
With the rider's lower body thus tilted forward, the rider then doesn't have to bend as sharply at the waist in order to achieve a very low upper-body position, which allows greater sustained power while also staying well tucked out of the air stream.

In fitting myself to some larger-framed road bikes over the years, I have often moved the saddle forward in order to preserve a reasonably "tight" span from saddle to handlebar. I found this quite beneficial to my power/aero balance as long as my pedaing intensity was high enough to keep to much weight from falling on my arms and as long as my neck didn't tire from having to look more upward. The steering stability is also improved (versus using a shorter stem to preserve a tight reach span to the bars) because more weight falls on the front wheel.

Afischer70

[QUOTE=sdn40;20827819]Go say "nice bike" 3 times in other threads. Is it that hard ? It's set up this way to stop the posting of spam. And maybe a bit to stop the one and done people wanting to know about a bike they want to flip and never come back. You've already been told it's a bike that's not well known, and goes for modest prices, therefore when you consider selling on ebay, shipping costs, along with the money you will have to stick in it, it's probably a losing proposition. If you're looking to snag a quick $200, it's just not there no matter how many pics you post[/QUOTE


You don't have to be rude about it. I was just asking a question and how was I suppose to know to post "nice bike" 3 times in other threads.