I know it's UD, KB. I was refering to the finish of the frame (flat varnish, waxed, nude...)

Is it a custom made frame?.

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Biomechanical spreadsheet. Sizing&Fitting.

http://weightweenies.starbike.com/forum ... 8e319d185b

ah, wow. not sure how i missed this one..... wow. think i'll be looking with my jaw dropped for a while!

totally



it is nude with a 303 application

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www.crumptoncycles.com

After reading the thread on Gum's new UL I thought I'd post an update on my UL. I can't believe I've been almost 5 years on the same frame and still can't find a reason to upgrade. It remains an incredible bike. A couple years ago a moped swerved into my rear wheel/dropout on a descent and I had to have Nick make a couple repairs, adding 8 grams to the frame weight. The biggest changes are the change to clincher wheels, changing to a separate bar and stem, switching forks, and giving up on AX seatposts and brakes. But it's still just under 12 lbs (without the seat bag of course).

The revised build list:
Frame: Crumpton UL 738g
Bars: Zipp SL, Short and shallow, 44cm c-c
Stem: Ritchey C260 130mm, stock bolts (so far)
Brakes: EE with SwissStop Green pads
Headset: Tune Bobo
Fork: Edge (Enve) 1.0
Brifters: Record with BTP clamps. R Ergo with Escape internals.
Cables/Casings: Alligator
F Der: Record QS CT with alloy bolts
F Der clamp: Parlee
R Der: Record QS with KCNC oversize jockey wheels, carbon inner plate, and alloy limit screws
Chain: KMC X10SL Gold
Seatpost: Selcof monocoque with AX carbon cradle and clamp bits
Seatclamp: custom carbon
Saddle: AX Endurance colored
Cassette: Cycle Dynamics 11-25 TSN51 coated
Skewers: KCNC
Cranks: THM Clavicula compact 175mm, 50/34, FibreLyte outer, TA Syrius inner, custom hybrid ceramic bearings
Pedals: Speedplay X-1 with alloy butterflies and custom Ward Ti axles.
Cages: 2 - BTP
Wheels: Rear - Extralite Ultrahub with ceramic bearings, Cxray spokes, 24 hole Stans Alpha 350 rim, triplet laced. Front - AC Micro 58 hub, cxrays, 20 hole Stans Alpha 350 rim, total wheel weight 1139g without decals
Tires: Conti GP4000S with Performance ultralight butyl tubes and veloplugs

The wheels have been working great. I really like the wider tire profile with the Alpha rims and they've held up to branches, holes and a hard curb hit surprisingly well.

At some point I should probably clean it again!

No reason to change if something feels and looks as good as that.
But let's be honest, half the time the reason we change is out of boredom, and in this industry with something new coming out every year, there is a lot of temptation.

Regardless, still looks amazing!

Have you felt the frame become "softer" over the years?

I can't tell any difference over time, despite no attempt to coddle it. But I'm pretty sure I've gotten softer.

Damn this is one fine machine!

Just curious- why the change from the scapula to the edge/enve fork? Notice any differences in handling between the two? (only ask as considering scapula on upcoming build). Thanks!

The tapes...

Ok, just go get yourself some Cinelli Splash or Caleido tape and "get 'r done."

All kidding aside, dreamy bike there. Just the tapes...

It's aging gracefully

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs

The fork change was after the moped incident. When I pulled the fork out there was a bulge in the steerer where the Extralite expander was so I decided it was better to switch to something else. The THM was lighter and more comfortable but the Edge is more precise. Steerer walls are also far thicker so I think it's worth the weight penalty for extra stiffness and safety.

I rode the THM fork over unpaved/gravel fire roads and all sorts of crappy forest service roads so it's not like it's fragile but I just couldn't trust pushing the limits that far any more. My eyesight it also pretty bad now so I hit a lot more holes and fallen branches than most, which isn't ideal for ultralight stuff.

I love my THM fork. I have total confidence in it. I also had a AX fork at one point and sold it before I ever tried it. Lol I didn't have the same confidence.

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RUEGAMER 5.21kg, 11.48lbs

CRUMPTON 4.40kg, 9.70lbs

thanks @mises and @gumgardner- great info