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96 Explosif frame/forks
- Thread starter Jones
- Start date
one-eyed_jim
Old School Grand Master
I think it's a 19".magas":yieci1vs said:
The angle of the first photo makes the head tube look longer, and the low saddle in the second adds to the impression of bigness, but compare this 20" Kilauea:
http://www.gumtree.com/london/06/44098406.html
Anthony will confirm or deny, no doubt.
Yes, it is a 19, but I expect that's what Magas meant to type - the point being that the seller is saying that it's an 18, which is wrong.
It's quite easy to tell when you have a decent sideways picture like number two here. Put a ruler/other straight edge along the tops of the tyres and there is roughly 14.7" of seat tube underneath that line (slightly less if the bike has an over-long fork, but that isn't the case here). So in a make like Kona where there is a 3" extension above the centre of the top tube connection, you can look at where the connection is relative to the line of the tops of the tyres - here just over an inch above, and you have 14.7 plus just over an inch plus 3 = 19.
To confirm, measure the length of the head tube relative to the distance from the fork brake posts to the axle (25cm) - here just over half, indicating a 13cm head tube, which is a size 19 for a Kona.
Sad this may be, but even sadder I think is the case of the 97 Explosif bought by Jones the other day at a very low BIN - another member spotted it before him, but didn't buy it because it was described as a 17 and he wanted an 18. But if he had measured it as above, he would have seen that it was in fact an 18 - and he would then have bought it and got himself a nice bargain.
It's quite easy to tell when you have a decent sideways picture like number two here. Put a ruler/other straight edge along the tops of the tyres and there is roughly 14.7" of seat tube underneath that line (slightly less if the bike has an over-long fork, but that isn't the case here). So in a make like Kona where there is a 3" extension above the centre of the top tube connection, you can look at where the connection is relative to the line of the tops of the tyres - here just over an inch above, and you have 14.7 plus just over an inch plus 3 = 19.
To confirm, measure the length of the head tube relative to the distance from the fork brake posts to the axle (25cm) - here just over half, indicating a 13cm head tube, which is a size 19 for a Kona.
Sad this may be, but even sadder I think is the case of the 97 Explosif bought by Jones the other day at a very low BIN - another member spotted it before him, but didn't buy it because it was described as a 17 and he wanted an 18. But if he had measured it as above, he would have seen that it was in fact an 18 - and he would then have bought it and got himself a nice bargain.
chrisfish10
Dirt Disciple
my explosif frame
just measured the head tube, its 130mm, does this mean its a 19"
if so id better change ebay description.
thanks for your advice
thanks chris.
just measured the head tube, its 130mm, does this mean its a 19"
if so id better change ebay description.
thanks for your advice
thanks chris.
chrisfish10
Dirt Disciple
sorry for doubting you, its just i was sold the frame as an 18" and just assumed it was 
have changed ebay listing to suite.
chris
have changed ebay listing to suite.
chris
