West 5 Cycles

Cycling, fixed-gear bike building and life on two wheels only

Stealth Pro Carbon iterations from Planet X

I’ve getting a lot of questions lately about my latest build, the Planet X Stealth Pro Carbon Track frame as it is (as far as I know) called the same as the TT/Triathlon frame (i.e Stealth Pro Carbon), yet looks slightly different and with the crucial difference of mine sporting a fork drilled to take a brake, as opposed to the standard issue fork in the track frame set that doesn’t have this modification.

I must say that this is a little confusing, as when you go on Planet X’s website and look under the menu item frames, you see the Stealth Pro Carbon TT/Triathlon version, which retails at a modest £630 for frame, fork and seatpost and comes with gear hanger, braze-ons etc.), whereas if you look under their new track section, you will find the Stealth Pro Carbon Track version, which retails for £735 (frame, track fork and seatpost, no braze-ons and slightly different frame design) and does not have a fork drilled to take a front brake.

Planet X Stealth Pro Carbon TT/Tri frame

Planet X Stealth Pro Carbon TT/Tri frame

Planet X Stealth Pro Carbon Track frame

Planet X Stealth Pro Carbon Track frame

So what did I do, you may wonder? Well, there is the easy option of buying the track frameset and one of Planet X’s standard road forks and replacing the track fork with one of those – yet, having tried this, I still didn’t think it looked quite right (and pimped up my Pearson Touché with it instead!) so I began wrangling with Planet X for them to sell me the track fork designed to take a road brake. After much toing and froing, they agreed and put some up for sale here, top of the list, which are the ones I have on my bike now.

Planet X Stealth Pro Carbon Track frame with TIME TRIAL forks

Planet X Stealth Pro Carbon Track frame with TIME TRIAL forks

So quite a project, but came in at a reasonable price in the end after I managed to shift my track forks on Ebay, to cover for the cost of buying the TT roadforks. Of course there is always an easier way and that is to go have yours specced and built up from scratch, here called the Fixed wheel Pro Carbon TT, which comes in at around a grand for the complete set-up, including wheels, TT bars and the lot.

Whatever you do, is of course up to you, but having ridden mine now for a few weeks I must sing its praises, it is a magnificent bike, very responsive without being nervous and accelerates very rapidly, a true joy to ride – mine only weighs 7kgs, complete with pedals and the On-One alloy track wheels, so for a very competitive price you can not only have a true carbon stealth fixie, but also be having a serious stab at coming in just at UCI race bike weight!

2 Comments »

  Greg wrote @

Looking at the photos I’d say the main difference between the track and TT Stealth frames is where the seat stays hit the seat tube (far more aggressive on the track frame) and the joint between the head tube, downtube and top tube looks massive on the track bike.

I race at the local velodrome and have been looking at this frame as a possiblebuild-up when I cat up next year. I’m also thinking that the TT frame sports 130mm rear spacing and the track frame has 120mm for a proper fixed hub? Wouldn’t make sense to use spacers…

  Cecilia wrote @

I think you are right – with the track frame you’d get the full aero effect at the back, particularly if you have aero rims or even a disc, so the frame will nicely wrap itself to create minimal turbulence around the back wheel.

It is very fast I must say, even with my alloy track wheels which don’t even have much of an aero rim to mention..


Your comment

HTML-Tags:
<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <pre> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>