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Discussion Starter · #1 ·
hey all i have a chance to purchase a new set of bontys at a great price. i ride a powertap rear training wheel and have always raced on tubulars, i have no problems with the fitting of tubulars tyres. what im after is a pure performance comparison of the d3 clincher to tubby. the tubular is lighter the white paper states the clincher is more aero. i woule be looking at the 7 unless you can convince me otherwise. im a 77kg tt loving sprint hating road racer. a grade over here, cat 1/2 i guess. i can climb enough to get me through most races but i just attempt to break away in a small group or solo. cx wrench what is your opinion?
 

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The tubs are designed completely different from the clinchers. I have had a couple of clinchers last years and several sets of tubulars. The tubs are designed to be as light as possible. They use a different carbon lay-up than the clinchers. The hubs on the tubs iwhat sets the two apart. The tubs roll much nicer and accelerate quickly.. also the braking is much more solid than the clinchers. The clinchers come out much heavier.. I wasn't too impressed with them, just another high end deep dish wheel. NOW the tubulars will make you smile. I have used various D3' and found the D3 5 on the front and the D3 7 on the rear F_ _ _ing fly. I may try both 7's this year but live in a hilly area and like to keep my front more shallow. SO definetley the tubs
 

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i don't know how a D3 has better braking in the Tubular version then the Clincher. I would say that's a mute point, since they should be the same. Ditto with the same Carbon layout, just designed slightly different due to the rim bead.

Tubular - Better ride quality, lighter so they spin up faster.

Clincher - Info from a lot of manufacturer's (Enve, Zipp and Bontrager), Clinchers might be slightly heavier but coupled with a latex or very lightweight Butyl, they are faster.
 

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Discussion Starter · #6 ·
ok next question, i currently ride veloflex servitzo course 23mm tubs, 23 or 25 (arenberg)?
 

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Most aero clinchers have been tested and best performed with 22-23mm.

HED vanquished (not yet released) - recommends continental attack/force
Enve 6.7 - also attack/force or vittoria open corsa 23mm.
Zipp - tangente 23mm
Reynolds aero's - vittoria open corso's I believe. Also 23mm.
 

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ok next question, i currently ride veloflex servitzo course 23mm tubs, 23 or 25 (arenberg)?
On my D3 50mm tubular (27 mm rim width ) i glued on some Vittoria Evo cx 25 mm .The match is perfect ,great handlng in fast thecnical descend ,more comfort , i'm staying with 25 mm after compared with 23mm .I'm not slower with 25 mm . Great solid wheel .
 

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'brifter' is f'ing stupid
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i don't know how a D3 has better braking in the Tubular version then the Clincher. I would say that's a mute point, since they should be the same. Ditto with the same Carbon layout, just designed slightly different due to the rim bead.

Tubular - Better ride quality, lighter so they spin up faster.

Clincher - Info from a lot of manufacturer's (Enve, Zipp and Bontrager), Clinchers might be slightly heavier but coupled with a latex or very lightweight Butyl, they are faster.
you make no sense in most of this post. regarding the braking question, you've already answered your own question in the part i bolded.
how do you know whether the carbon layup is the same when you can't even use the correct word?
and why would a clincher be faster depending on tube choice? speed is mostly determined by aerodynamics not weight. weight has an affect on acceleration, yes. top speed? no.
 
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