The mission was to build a fast, capable roadbike. An allroad, cyclocross, endurance call it what you want. No gravelbike tank and no touringbike neither. This bike should "just" be a more robust personalized version of my previous trek crockett. As you can probably tell the look is heavily inspired by English Cycles, T.red and Weismfg. The geometry is pretty much copied from Treks boone... Just to get one important thing clear. Can we all agree that straight non sloping toptubes look better? Don't they? OK, but I have short legs so this discussion is ergonomicly not compatible with my proportions. When I showed Njazi from Scampi Cicli the drawings he said: "That's a fancy womens bike! Is it for your girlfriend?". I don't have a girlfriend yet buf I gave previous girlfriens bikes so this is a valid question... The special headtube construction has a square cut out window for the stem to fit trough. An other special detail is the seattube. It has no visible external seat clamp. The cable routing at the cockpit was another tough decision to make. After seeing Claudias prototype Stelbel with internal cables paired with basic sleek stem and headset, it was tempting to go full internal. On a sunny weather roadbike I would not hesitate to get the clean integreation but on this allweather beast the hoes will stay outside of the stem and headset. The unfinished industrial raw style of a bare frame for me personaly is perfection. It highlights all those hours of labour that went in to smoothening the fillets. The challenge with columbus spirit tubing is they will start to rust. Even many layers of clearcoat or clear powdercoating can't stop corrosion. According to some forums a new process called cerakote seems to be the only possible solution. Patrick from Dreier Cycles in Zurich did 4 coatings of cerakote. It looks like raw and is only 0.08mm thick ceramiccoated exactly how I wanted it to be. Sadly the cerakote held up better than expected but the inside started to rust si I'll have to get it phosphatised and painted before next winter.
Frame:
Wim Kolb from Kolb Rahmenbau fillet brazed custom frame with Columbus max toptube. 38mm spirit downtube. Custom spirit headtube, chain- and seatstay, T47bb and pmw stainless x12 Syntace dropouts with Shimano direct mount hanger.
Weight transparency data:
-Raw unpainted frame 2260g
-Painted frame with 4x 20µ Cerakoatings (0,08mm total) 2310g
Fork/Headset:
Carbon Brother Cycles Road Fork / Axle-to-crown 381mm / Offset 45 / tapered 1 1/8 – 1 1/2″ / 100x12mm CARBON-TI X-Lock EVO M12x1.5Px120mm Axle / Hope EC44/40 lower bearing 52mm 40mm 45&45 / Custom adapted ZS44/28.6 silver top bearing
Crankset/Bottom Bracket:
Ultegra FC-R8100 50/34 165mm / Chris King T47i 24mm Ceramic matte slate
Pedals:
XTR PD-M9100 tuned with Meti grade 5 titanium axels and 686 6x13x5 ceramicspeed coated bearings or stock Dura-Ace PD-R9100
Drivetrain/Cog/Chainring/Chain:
Cassette Dura-Ace CS-R9200 11-34 / Chain "Dura-Ace" XTR CN-M9100 waxed with silca secret hot blend wax
Derailleurs/Shifters:
Ultegra Di2 RD-R8150 with EW-SD300 1200mm/ FD-R8150 with EW-SD300 650mm / ST-R8170 with Y63X98050 Ti clamp band unit
Saddle/Seatpost:
China Carbon Saddle / Thomson Masterpiece 27,2 with Custom long Di2 wedge handmade from Rob English tuned with discontinued smud-carbon cradle and titanium hardware and internal BTDN300 battery
Brakes:
Dura-Ace BR-R9270 front / XTR BR-M9110 rear because the XTR bleed nipple is not sideways. The new 9270 bleed boss is on the outside and covered from the lowered seatstay so it would be mandatory to dismount the brakecaliper to bleeding the system / BCA Yoda Centerlock 240/160mm rotors
Front Wheel/Hub/Tire:
690g Nextie Carbon 50mm NXT50GX ERD541mm 425g 50x29x22mm laced with 24x 260mm Sapim CX-Ray to DT-SWISS 350 with black Sapim polyax 12mm brass nippel and Sapim 0.6x9,5x14 mm stainless plates / Vittoria Corsa Control 28c or Vittoria Terreno Mix 33c with Latex tubes
Rear Wheel/Hub/Tire:
820g Nextie Carbon 50mm NXT50GX ERD541mm 425g 50x29x22mm laced with 28 Sapim CX-Ray (DS256mm, NDS258mm) to DT-SWISS 350 with black Sapim polyax 12mm brass nippel and Sapim 0.6x9,5x14 mm stainless plates / Vittoria Corsa Control 28c or Vittoria Terreno Mix 33c with Latex tubes
Accessories:
2x King Cage Titanium /
plenty of Pro-Bolts drilled titanium racebolts /
Meti Titanium Pedal Axels from italy /
More Info:
Maintanance Intervalls:
-grease seatpost every 12 month, (done Feb 2023)
-apply body cavity spray every 12 month. (done feb 2023)
Total weight 9.6kg in CX mode and 9,4kg in road mode. with pedals, bottlecages and garminmount.
Bike History
Click a link below to see past stages of this bike.
Added by ianiscaratti. Last updated 24 days ago.
Latest 23 Comments
it's alive!!!
Posted about 1 month ago
5k aleady on this beast. Waiting for a new wheelset and warmer weather.
Posted about 1 month ago
did you already swap the crankset to the R7000 model? and new stem with no headset dust cap? What was your reasoning?
Posted 10 months ago
Simple: Even if I work for Shimano and and ordered the groupset back in 2021, I'm still waiting for the Crank. The R8100 on the contest was a crank that Scampi Cicli lent me. Now I have to ride the available and cheap 105 till my crank will be delivered. Extralite stem is some serious weightwheenie stuff. How this cnc masterpiece flexes and clamps is just scary. The Ritches is 120g heavier but I trust it lol.
Posted 10 months ago
How is the ride? I see you already bifft
Posted 10 months ago
It rides amazing like expected but I haven't been on cx tires since last winter (ca. nov 2021/ 7 month ago). They terreno mix drift very predictable on trails and gravel but cx tires are scary on tarmac. Luckily only the Sti is broken and should be exchanged soon.
Posted 10 months ago
I'm saying this with great affection: this is a fucking bicyclepubes bike.
Posted 11 months ago
there is an instagram account named @bicyclepubes that makes fun of current trends in "alternative cycling", initially as drawings made in MS Paint and now as fully built monstrosities. genuinely though, congratulations on realizing your vision on such a unique bike!
Posted 11 months ago
ok now i get what you mean and ys it is very very extreme lookung but in the exact way i wanted it. Maby it will get featured on the pubes meme account you mentioned lol
Posted 11 months ago
Woohoo 100th update and we finally see a bike
Posted 11 months ago
you guys are joking. it was planed for 2023 but the framebuilder found some more time that's why it is already finished now.
Posted 11 months ago
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Tags
columbus, columbussteel, columbustubing, commuter, custom, customsteelbike, cycleweek, cyclocross, filletbrazed, fillet-brazed, freak-bike, kolbrahmenbau, road-bike, steelisreal, wimkolb, zurichcycleweek
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ianiscaratti's Other Bikes
DoktorMave says:
Super Slick!!
Posted 24 days ago
ianiscaratti says:
thank you <3
Posted 24 days ago