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PostPosted: Sun Feb 12, 2012 5:17 pm 
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anyone have one of those - any good ?

how True Temper rides ?


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PostPosted: Tue Feb 14, 2012 9:24 pm 
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no experience with "modern" Konas - so does anyone own or ride a True Temper Platinum OX framed Explosif ?

always wanted to ride a steel Kona with discs and the 2003 Explosif has all that, am offered one, is it worth a try ?


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PostPosted: Thu Feb 16, 2012 1:49 pm 
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To be honest i really rate it.

Effectively "True Tempers" answer to Reynolds 853.

take a look...

http://www.retrobike.co.uk/forum/viewto ... cafe+racer


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PostPosted: Thu Feb 16, 2012 2:46 pm 
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cheers, sinnerman :)

looks good, the one you did.

my idea was to have a disc'd steelframe and I love the Kona geometry, but did not want to have a disc tab welded to a, lets say a 96 Explosif, I stumpled across a 2003 Explosif bike. If quality of tubeset is as good as 853, than I should give it a go.

Want a lightweight CC/marathon bike, so thinking about using a SID and some XTR 96x stuff - will report here.


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PostPosted: Thu Feb 16, 2012 4:33 pm 
Posh Mark
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I thought the tubesets on these were frighteningly thin.

Seen more than a few early 2000's steel Konas with damaged tubes from knocks.

Might just be me though!


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PostPosted: Thu Feb 16, 2012 4:46 pm 
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interesting, will check the frame , I'm interested in, for dents aso. On the other hand I'm used to thin frames, mostly alloy - thinest one a Scandium d.b. full susser frame - you can do a dent with the pressure of your thumb :shock:


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PostPosted: Fri Feb 17, 2012 12:49 am 
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Bear in mind this was a period when somebody building a bike was investing more in the forks than in the frame, also often more in the disc brake system than in the frame. So the frame became less important, and a brand like Kona was looking to make savings on the frame.

So if you look at the Explosif, in 1998 the front triangle was Reynolds 853, and the stays were Reynolds 735, the mix recommended by Reynolds. By 1999, the '853' Explosif had gone down to generic 4130 non heat-treated stays. After a couple of years of failing to sell scandium Explosifs at very high prices, they reverted to steel and from 2002 to 2004 they built what is known as the True Temper OX Platinum Explosif. However only the top and down tubes are True Temper OX Platinum and every other tube is generic 4130. They did have butted stays in 2002/3, but by 2004 they went to plain-gauge stays.

I can't really answer your question because I have never ridden any Explosif later than 98, but it's interesting that the disc system and perhaps the need to compete with the dominant aluminium changed the way steel frames in general were designed. Not just lowering cost, but gradually increasing weight, and also transferring weight backwards - the front triangle staying very light, but the stays getting heavier. But I would imagine the move to plain-gauge stays in 2004 was merited rather than for economy - they needed to be stiff to withstand braking forces and to give a ride as solid as aluminium. So maybe they found the combination of disc brakes (used for the first time in 2003) with butted stays (used up to 2003) had too much flex for optimum performance.

I don't know that, it's just speculation - manufacturers never come clean over this sort of thing (after 2004, Kona stopped giving details of frame specs - to be fair, they had been exceptional in being so open up to then). Rocky Mountain went the other way when they moved the Blizzard from 853 to Columbus Zona - they made it lighter. Not that Zona is lighter than 853, but they chose a lighter spec. I think latter day Explosifs weigh c5lbs, as do VooDoo Bizangos, and people speak well of them - they're built that way for modern purposes. I guess the so-called OX Platinum Explosifs were a step on the way to that.


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PostPosted: Fri Feb 17, 2012 5:03 am 
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sinnerman wrote:

Effectively "True Tempers" answer to Reynolds 853.



That's a sig worthy quote, and I concur. :D


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PostPosted: Fri Feb 17, 2012 10:57 am 
Posh Mark
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Anthony wrote:
Bear in mind this was a period when somebody building a bike was investing more in the forks than in the frame, also often more in the disc brake system than in the frame. So the frame became less important, and a brand like Kona was looking to make savings on the frame.

So if you look at the Explosif, in 1998 the front triangle was Reynolds 853, and the stays were Reynolds 735, the mix recommended by Reynolds. By 1999, the '853' Explosif had gone down to generic 4130 non heat-treated stays. After a couple of years of failing to sell scandium Explosifs at very high prices, they reverted to steel and from 2002 to 2004 they built what is known as the True Temper OX Platinum Explosif. However only the top and down tubes are True Temper OX Platinum and every other tube is generic 4130. They did have butted stays in 2002/3, but by 2004 they went to plain-gauge stays.

I can't really answer your question because I have never ridden any Explosif later than 98, but it's interesting that the disc system and perhaps the need to compete with the dominant aluminium changed the way steel frames in general were designed. Not just lowering cost, but gradually increasing weight, and also transferring weight backwards - the front triangle staying very light, but the stays getting heavier. But I would imagine the move to plain-gauge stays in 2004 was merited rather than for economy - they needed to be stiff to withstand braking forces and to give a ride as solid as aluminium. So maybe they found the combination of disc brakes (used for the first time in 2003) with butted stays (used up to 2003) had too much flex for optimum performance.

I don't know that, it's just speculation - manufacturers never come clean over this sort of thing (after 2004, Kona stopped giving details of frame specs - to be fair, they had been exceptional in being so open up to then). Rocky Mountain went the other way when they moved the Blizzard from 853 to Columbus Zona - they made it lighter. Not that Zona is lighter than 853, but they chose a lighter spec. I think latter day Explosifs weigh c5lbs, as do VooDoo Bizangos, and people speak well of them - they're built that way for modern purposes. I guess the so-called OX Platinum Explosifs were a step on the way to that.


I always enjoy reading your posts Anthony 8) 8) 8) 8)

On a side I always thought that the rear stays on my 1999 Caldera were double butted - not that it matters either way.

On the look out for a 20'' 1998 Kona Explosif :oops:

Image

No mention of 725 stays though :?


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PostPosted: Fri Feb 17, 2012 11:23 am 
retrobike rider / Gold Trader
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I imagine that was a typo and Anthony meant 753? 853 stays aren't available as far as I'm aware...

Another fan of the Anthony Masterclass here too :wink: :lol:


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