When I measure my Dolan Aria TT frame centre BB to top of seat post its 52 cm, yet Dolan state that it's a 53 cm. The BB is approx 1'' higher of the ground than my standard road bike. My inside leg dims are 32'', AND MY HEIGHT IS 7' 7'' so what size of TT frame should I be looking for.

Frame size is generally measured from the center of the crank axle to the top of the top tube or seat tube, but things have become complicated. More recent bikes have top tubes that are slanted downward and longer seat posts, so that a 21" frame today may be equivalent to a 23" frame that is much older as far as fit is concerned. See these links for more info:

Revisionist Theory of Bicycle Sizing http://www.competitivecyclist.com/Store/catalog/fitCalculatorBike.jsp

I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881

Gary, Standard height from the floor to the bulls eye on the dartboard is 68" inches (173 cm) and the distance from the front face of the board to the toe line should measure 93 1/4" (237cm).
Check the attached links,instruction and guides, Good luck
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Maybe vacuum leak it loses when first starting

Bicycle seat posts are pretty standard items and you could just use a generic replacement if you want as long as you get the right size diameter.

If you still have at least part of the old seat post, then just use some precision calipers to measure the outside diameter of the seat post and that will tell you what size replacement you need to get.

This needs to be a pretty acurate measurement, within a tenth of a millimeter, so eyeballing it with a ruler just won't do it.

Otherwise, if you are missing the old seat post entirely, then you can try just measuring the inner diameter of the bike frame where the seat post slides into your bike tube and you should get the same measurement.

The easiest way by far is just to bring the bike into your local bike shop and get them to measure your seat post size with a special seat tube measuring tool they have. Then you can just order a new seat post based on that size from wherever you want, either right at the store or online.


Good luck and take care.

Joe.

52 INCH?

http://www.dolan-bikes.com/index.php?route=product/search&keyword=hercules

The frames have seat clamps so I guess that means the seatpost can be adjusted.

So what does "different frame size" actually mean? And what does that frame size number, 13" or 25" or whatever, mean? It's fairly simple.

The frame size number comes from the length of the seat tube. The seat tube is that nearly vertical tube of the three big tubes that make up the "main triangle" of the bike frame. The seat tube has the bike's saddle attached at the top, and has the pedals and crank arms attached at the bottom. A short seat tube will make the pedals closer to the saddle; a long seat tube will make the pedals further away. The frame size number is the length from the center of the crank arm spindle (the axle that holds the two crank arms together) up to the top of the seat tube (where the saddle and seatpost are attached). On some bikes this is measured in inches, on others in centimeters.

But that's not the only dimension that changes for different frame sizes. As bicycle frames get taller, they also get longer. That means the distance from the saddle to the handlebars gets longer. This makes sense, since tall people don't just have longer legs than short people. They usually also have longer arms, a longer torso, and so on. So the bike frame also needs to get longer in every direction for a taller rider, not just longer from pedal to saddle. The top tube gets longer, which pushes the handlebars further away from the saddle. The head tube (the frame part that the fork attaches to) gets taller, so the handlebars will be higher up. All of these dimensions and more are fine tuned in every frame size, so the right size frame for a person's height fits well everywhere, not just in the saddle.

The frame size number comes from the length of the seat tube. The seat tube is that nearly vertical tube of the three big tubes that make up the "main triangle" of the bike frame. The seat tube has the bike's saddle attached at the top, and has the pedals and crank arms attached at the bottom. A short seat tube will make the pedals closer to the saddle; a long seat tube will make the pedals further away. The frame size number is the length from the center of the crank arm spindle (the axle that holds the two crank arms together) up to the top of the seat tube (where the saddle and seatpost are attached). On some bikes this is measured in inches, on others in centimeters.

But that's not the only dimension that changes for different frame sizes. As bicycle frames get taller, they also get longer. That means the distance from the saddle to the handlebars gets longer. This makes sense, since tall people don't just have longer legs than short people. They usually also have longer arms, a longer torso, and so on. So the bike frame also needs to get longer in every direction for a taller rider, not just longer from pedal to saddle. The top tube gets longer, which pushes the handlebars further away from the saddle. The head tube (the frame part that the fork attaches to) gets taller, so the handlebars will be higher up. All of these dimensions and more are fine tuned in every frame size, so the right size frame for a person's height fits well everywhere, not just in the saddle.

Telewest virgin media. 5a01
00 CF 53 OC 33 79 61 71 85
01 52 5E 8D 45 FC 75 F6 4A
CW 5c01
00 BB A9 DC 68 4C C4 70 5F
01 4E C4 48 4D B7 D3 A4 1B
Pure NTL 5401
00 A9 5D 4E FE 20 E1 2D 03
01 88 63 69 7E 94 B6 BB 1E

Choose you provider !

Virgin media 5a01
00 CF 53 0C 33 79 61 71 85
01 52 5E 8D 45 FC 75 F6 4A

CW 5C01
00 BB A9 DC 68 4C C4 70 5F
01 4E C4 48 4D B7 D3 A4 1B.

5401 12/10/09

A9 5D 4E FE 20 E1 2D 03

88 6B 69 7E 94 B6 BB 1E

TELEWEST

CF 53 0C 33 79 61 71 85

52 5E 8D 45 FC 75 F6 4A