I imagine that fairly a few people analysis this have already seen this job we did because that Interbike, but we figured this was a good time to complete the details on it. Complete finished load of the bike was simply under 5.4kg, (11.89 pounds). The structure is a practice handbuilt through Nick Crumpton of Crumpton Cycles. The framework came in at 957.2 grams. Being virtually the very same weight as a superlight 29er frame which is twice the size, this one could certainly have to be lighter, yet the score was no to have just the lightest however something that could truly be gyeongju worthy. The bar/stem combo is a Bombshell handlebar and Enve stem with bonding by Calfee. Hubs room custom made by Tune. The rear started as a Mag150 and also had a new axle and end hat machined as well as the alloy freehub body changed with a titanium solitary speed version. Rims were custom from Velocity based on the tried and true A23 extrusion. Spokes were custom tower Titanium. Bladed profile v beefed increase 13g ends matched to custom 13g alloy nipples.

Complete develop List 5.4kg (11.89 pounds)

Frame: Crumpton Custom, (957.2g)Fork: Sinz Carbon (175 lbs load limit.) (462.2g)Wheels (407.9g / 438.5g): Rims: Velocity practice A23 rimSpoke: Pillar custom Titanium spokesTyres: Tioga Powerband Kevlar 1.85.


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(267.6g) / Tioga Powerblock Kevlar 1.75. (301.7g)Tubes: Eclipse, front (40.7g), rear 41.1rCrankset: track Smartfoot (508.2g)HandleBar/Stem: Bombshell Carbon bar / Enve Carbon stem,Cog: Recon Titanium 13t, (21.1g) (includes every spacers)Chain Tensioner: Custom, (14.6g)
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Worlds lightest ProXL built by Nick Crumpton
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Integrated Kcnc R1 headset
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Crumpton complete Carbon Frame
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Custom continues to be are overbuilt for strength
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Fairwheel Bikes optimal Cap perched on height of a Sinz Carbon Fork
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Enve stem, Bombshell bar v bonding by Calfee
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KCNC lever clamps to the practice Bombshell X Enve X Calfee bars.
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Heavily CNC’d KCNC brake lever
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Absolute Black hill Bike Singlespeed Chainring
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Custom handbuilt carbon dropouts, Recon titanium cog and also custom tune hub