Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Will this work on the used bike I just bought ?   1998 Trek 6500, specs say it came with a 1 1/8" threadless Aheadset Kontak ST-2
Document: I replaced my standerd vp-300 unsealed headset with this origin-8 pro series headset.Additional specs:sealed 45/45 degree cartridge bearings tapered aluminum headtube cups comes with a really nice dust cap I hope this info helps because its not provided its really smooth and very light it's a must have for any standerd headtube bike.
I bought this headset to upgrade from my previous headset that had unsealed bearings. I ride a bmx bike that has a gyro brake system. This headset is amazing but the cup is just to big for any detangler to fit over it. I took it to a bike shop and even the biggest detangler (snafu) would not fit over it.
I am very happy with my origin 8 headset although it might not be the lightest, it is a very solid product for a decent price. Its been holding up on my mtb very well.
Origin 8 always never fails, the headset was very smooth and perfect for any condition. Thanks origin 8 guys! Perfect!
I replaced the fork on my Diamondback Trace Sport, andwanted a headset with sealed bearings. The fork turnsvery smoothly with no clunks with the Origin8 Pro.
Let me start off by saying this is the cheapest thread less one and one eighth headset you can get, this headset is super light compared to the FSA pig I had.. It spins really smooth and fast, the cups were easy to install and it fits perfect.. I would defiantly recommend this headset if you wan't a good name brand headset thats cheap..
My original headset was stamped steel and it would creak and clunk when ever I hit a curb or hole. If I tightened it enough to be quiet, it wouldn't move smoothly. This headset is machined alloy and the sealed bearings are just silky smooth. It's somewhat larger than the old stamped steel unit and it looks as good as it functions. Quality hardware really makes a difference and this is definitely a quality unit.
It is cheap, yet it runs smoothly.
Answer: yes