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My New Rockman Kortz


netto

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I just finished building my new rockman kortz. It's a little bit heaver than my slate at 8.78kg (slate was 8.5). I had my first ride on the bike today, and it feels amazing. Despite the longer wheel base, the bike feels shorter than the slate. The bike is very responsive, and the frame is much stiffer. The only issue with the frame, is that there isn't a lot of tire clearance. With a large tire like the der kaiser, i only get about 2mm per side. But the frame is so stiff, that the tire does not rub the frame.

After about 30 minutes on the bike, I was feeling really confident on it. I was able to do a sidehop that I had a lot of trouble with on the slate within the first 3 tries. I was then able to do it every single time after.

I was expecting the bike to be a lot more unstable with the +60mm bottom bracket (the slate was +45). However, the bike feels a lot more comfortable on both wheels and on back wheel. I think the slacker head angle (70.5) helps a lot. I am also running a koxx forxx, which has a 35mm offset rather than a 45mm offset. The higher bar height may have contributed to the steadiness of the bike as well.

Here are the full specs on the bike :

frame : green rockman kortz

headset : silver echo SL

Stem : Tartybike forged 127x27

bar : try all NO WAR carbon fiber

fork : try-all +20mm

Front brake : Hope mono trials carbon/ti

Rear brake : Rear hs-33 with carbon fiber RB design lever

cranks : silver 170mm try all

freewheel : echo SL 108pt

bash : Trialtech titanium half bash

Pedal : wellgo mg-1

Front rim : Try-all hOle

front hub : Try-all H

Front spokes : Sapim CX-Ray with Vis alloy nipples

Rear rim : Try-all hOle

Rear hub : echo sl

rear spokes : Sapim CX-Ray with Vis alloy nipples

Front tire : schwalbe nobby nic 2.1

rear tire : Continental der kaiser

bottom bracket : reset titanium with echo SL bolts

This is my first time using the sapim cx-ray spokes. I find that although they are lighter than the dt revolutions, the spokes are much less stretchy. I found that my old front wheel with revolutions had a lot of spoke flex, which made the front disc brake feel less direct. These new wheels are definitely a lot stiffer than the old ones.

You can find information on the spokes here :

Sapim CX-Ray

Pictures :

KL_RM_L9O0595.jpg

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KL_RM_L9O0599.jpg

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KL_RM_L9O0601.jpg

KL_RM_L9O0602.jpg

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KL_RM_L9O0604.jpg

KL_RM_L9O0605.jpg

KL_RM_L9O0609.jpg

KL_RM_L9O0613.jpg

KL_RM_L9O0614.jpg

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KL_RM_L9O0616.jpg

KL_RM_L9O0619.jpg

KL_RM_L9O0620.jpg

I also took some riding pictures today. I'll upload those as soon as my photographer friend sends them to me:)

video of riding here :

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Edited by netto
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