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Archive · CTM · Koyuk

CTM Koyuk 1.0 / 2.0 / 3.0 2022–2024

Archive model 2022–2024. Probably no longer sold new. I only have the frame geometry, not the build.

I’m buying or selling this bike ↓

Geometry ?

CTM Koyuk 1.0 / 2.0 / 3.0 geometry for model years 2022, 2023, 2024. Model years are approximate: manufacturers rarely say exactly when the geometry changed.

Size520540560580600
Stack553557566590600
Reach361380390405422
Head angle70°71°72°73°74°
Head tube140140150175185
Seat angle73°73°73°73°73°
Top tube (effective)525545558580600
Seat tube440480500540560
Chainstay430430430430430
Wheelbase10201030104410671088
BB drop6969696969
Fork offset5555555555

Geometry source: web.archive.org

Bike from a listing

Buying this bike second-hand? Enter the size, stem and spacers actually on the bike to see whether it fits you.

Selling it? Fill in the details and paste the link into your listing. Buyers will see where the bars end up, based on what you enter.

How do I measure it?

Cover + spacers: measure from the top of the head tube to the underside of the stem. That’s the headset cover plus any spacers. Length and angle are usually printed on the stem (−6° is typical, with the stem pointing down). Bar reach is on the bar manufacturer’s website. If you can’t find it, leave it at 75 mm. Spacers above the stem show how much higher the stem could still go. Leave that blank and I’ll assume it can’t go any higher.

Is it an integrated cockpit, a one-piece bar and stem? Then the stem may not be swappable. Check with the seller.

Do you ride it? Enter it as your position.