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The Ultimate Weight Weenie

May 1, 2010

AX 4000 handlebars, 135g, $800

Unlike my previous post, this build is a no holds bar try at making an ultra-light bike. Although there could be other options for the frameset, I’ve decided to build upon a Scott Addict R1 frame, which weighs 790g. While the AX Alpha could be used in such a build, it’s not yet available and the frame itself is almost double the price of the Addict. The same goes for the Spin Gato. The Guru Photon usually weighs more than the Addict, depending on the size, from the reports that I’ve seen. It’s also a lot more expensive than the Addict R1.

AX Premium 24 SRT Wheelset with Tune hubs (MIG45/MAG150), 820g, $2,900

The main difference is that this build uses all of the lightweight carbon fiber parts. The emphasis is on extreme lightweight. As such, AX Lightness parts would be used. Of the main gruppos, SRAM Red is the lightest. It’s also the cheapest and there are quite a few easy ways to tune it.

AX 6000 fork, 250g, $900

The goal of such a WW build is to get it sub-4-kg. This isn’t easy. Also, it’s expensive. My estimate on the AX Lightness parts alone in this build is $8,700. Adding the cost of the frame, other odds and ends, as well as the SRAM Red tuned parts and we’re up to $14,000.

All AX Lightness parts are handmade in Germany. They are custom-made and require 4 weeks lead time. Wheelsets require 6 weeks. AX Morpheus crank will start selling towards mid-May. Send us an email at asteriskcycles at gmail dot com if you want to order any AX Lightness parts.

AX Zeus stem, 64g, $800

Scott Addict R1 frame             790g <- could be replaced with AX Alpha frame, -210g +$2,500
AX 1000      saddle                     55g
Extralite headset w cap             40g
AX SRT 24 Premium wheels  820g
Recon ti 11-25 cassette            136g
AX 2100 seatpost                       85g
AX 4000 handlebars 42cm      135g
AX Zeus stem                              64g
AX Morpheus inc BB                 370g
AX 3000 brakes                        130g
AX 6000 fork                             250g
Fibre Lyte chainrings 50/34     54g
Red STI levers tuned                243g
Rear derailleur Red tuned        117g
Front D/R BTP Campy               56g
KMC X110SL Chain                  229g
Alligator I-link
Tufo Ultra                                  240g
Deda tape                                     30g
Fibre Lyte top cap                        3g
BTP Seat Clamp                            6g
Parlee FD clamp                            7g


AX 3000 brakes, 130g w pads, $1,100


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