Fixed Time Trial Bikes

You have to think of how everything works as a whole. With a fixed saddle position, you could have a short TT with low pads and a longer TT with higher pads and still have the same back position.

You need to borrow a TT bike before you can make reason of your calculation

But if you enjoy spending a lot of time on guessfaff and spending dorrah, forget what I wrote <3.

Oh arses and bollocksation. I can see this becoming a "to do" project for years.

Must get some clip on bars first.

I've decided to build my langster pro into a TT bike so I can have a bike permanently set up in a TT position. Out of interest, do you guys run a 1/8th chain or a 3/32 chain on your TT bikes? I currently run 1/8th, but need a new chainring and sprocket as currently run 48/17. I might use it for some hill climbs too which made me think about 3/32...

There's no particular reason to run one over the other.

3/32 is more aero :)

Are there fewer quality sprocket options in 3/32"?

There's Phil and Dura Ace, that covers everyone's need I'd have thought. Toyed with switching to 3/32 but it's a £200ish change.

I've not struggled to find any. Guess it depends how fussy you are.

I think Xav had a good reason for choosing one over the other in the TT thread a while ago, but I can't remember what it is, or which he preferred.

unhelpful answer is unhelpful...

Would power be an issue in terms of durability? (Thicker the better non?)

TdF sprinters manage fine on 3/32. Not overly concerned about durability on my race bike, it gets a new chain every 500-1000 miles anyway.

Speaking of which, 1/8" chain recommendations?

The lighter the better. Doesn't need to be some over-engineered thing for sprinters as I'm piss weak.

3/32 is lighter too innit.

There is no actual reason to go for 1/8 unless you are the chap on the right in this pic

Quads look aftermarket. B-)

Tester will say Wipperman 1R8 which is no lightweight. I've never had a problem with £7 SRAM PC-1s

KMC710SL. I had one on my Brompton before it became a fixeh. Reasonably light, but wore quite quickly.

Bit easier to find chainrings in 1/8th if you're using track cranks? Especially in bigger sizes

Sticking with 1/8th for that reason

Not once you want over 55t :(

https://instagram.com/m2.mquadro/ Cheap custom chainring size everything (1/8)

Wouldn't say they're particularly cheap.

Bit easier to find chainrings in 1/8th if you're using track cranks? Especially in bigger sizes

Not so, you're basically down to Gebhardt or Fibrelyte once you go over 53T, and either of them will just as happily sell you a 3/32" ring with full height teeth.

Tester will say Wipperman 1R8 which is no lightweight.

KMC X101 is an option, still a proper (bushed) track chain but ¼lb lighter (112 links) than a 1R8, actually lighter and narrower than the 7R8 3/32" chain according to published numbers. I'll probably try one next time I change my chain. It is about 50% more expensive than the Wippermanns, but in weight weenie terms £10 for 100g is the bargain of the century :-)

Wouldn't say they're particularly cheap.

They're so cheap they don't even have their own website