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2011 GT Tachyon upgrade/mod
#1
I always loved Hybrid type bikes, they serve a broad niche in cycling from comfort to sport fitness. I acquired this 2011 GT tachyon 4.0 hybrid That was the classic case of not being ridden much and tossed in the garage for 10yrs collecting dust and dirt. Being good at looking thru the crud to imagine how nice the finished refurb will look, I chose to kick this bike up a notch to create a Flat bar road bike/sport/fitness/commuter.
trying to figure out how to post images again so bear with me. I decided to keep the original shifters, and mini V-brakes, as for everything else it gets replaced to make and awesome big geared sport fitness hybrid, I chose Shimanos 2300 series crankset and rear derailluer, went with larger tires found mostly on todays hybrids.
and some Ritchey components to add to ride quality and of course looks, carbon seatpost, carbon bars, barends,and stem of all Ritchey components. and of a very nice set of Shimano Platform pedals to make the whole package come together smooth as butter. This bike re geared from stock with the right rider will now perform to speeds of 30mph on the flats or more.
I will add more images soon


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There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
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#2
Love the Tachyon. I would love to own one myself one day—and a GT Attack 1.0.
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#3
The tachyon 4.0 is a solid platform to leave as is or to build upon. who knows reap this one is being built to sell this spring (or sooner). In my area spring is the best time for bike sales. This build will be slated to come in at the $800 range
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
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#4
One of the first things to go was the ats stem system, I never move my stems up and down once the bike is setup for me, It limits stem choices and bar choices. so keeping with the Ritchey brand components I was able to do the stem bar swap quite nicely and add a mix of carbon and alloy spacers to suit. The stem has an inverted stripe pattern seen on the frame scheme of the bike and flows really nice in the overall look of the bike.


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There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
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#5
Next I wanted to upgrade the drivetrain towards an more road bike gearing that would give me more bang for the buck. Thats where the Shimano 2300 series comes in. Crankset 30/42/52t and rear derailluer, Sram 11-28 rear cluster to make it all come together for flat speeds to 30mph or more. If one is not in shape for this then there is plenty of room to grow with the bike making a great fitness/sport Hybrid. Most often overlooked are pedals. I do not recommend skimping when it comes to pedals, after all they are the first moving part connecting the rider to the bicycle. Shimano platform pedals fit the bill on this build nicely.


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There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
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#6
looks like a great urban fitness ride, @Painkiller ! I can't clearly recognize these shifters - which model is it?
and I am missing the classic side-on shot from the driveside Big Grin

p.s.
you managed to post images nicely
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#7
Local bike shop had a Tachyon 2.0 (Grey and Electric Yellow) on clearance and I missed out on it.

I really wanted to grab it, but couldn't get the funds in time. I had previously bought my Transeo 5.0 (Gunmetal and Blue) from there.

That's the one I would be looking to recapture if I did get one.
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#8
hey Papa, the shifters are st-ef51 3x8. Not quite ready for the full reveal yet. a few things to button up yet
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
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#9
(11-18-2022, 05:57 PM)Painkiller Wrote:  The tachyon 4.0 is a solid platform to leave as is or

I've been searching for a while. If you are Selling it please let me know. I am interested
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