Trek Y Foil 77. An iconic classic brought bang upto date.

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Clannagh
Posts: 292
Joined: Tue Jul 15, 2014 7:37 pm

by Clannagh

I used self adhesive Matt black vinyl, painstakingly applied.
They could be sprayed once you've rubbed them down with 400grit paper, I couldn't bring myself todo that!
Last edited by Clannagh on Thu Mar 09, 2017 9:50 am, edited 1 time in total.

by Weenie


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Clannagh
Posts: 292
Joined: Tue Jul 15, 2014 7:37 pm

by Clannagh

Well its been a while since visiting here I think its time to post some studio pics, post a set once they're complete ... :D
Image

Image


Image

FLtrooper
Posts: 191
Joined: Thu Oct 06, 2016 2:26 am
Location: SFL

by FLtrooper

It looks Awesome, Congratulations!

:)
:beerchug:

jorisee01
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Joined: Mon May 04, 2015 8:22 pm

by jorisee01

True bike porn!


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Poita
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Joined: Sat Apr 30, 2016 4:01 am

by Poita

Amazing!

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Clannagh
Posts: 292
Joined: Tue Jul 15, 2014 7:37 pm

by Clannagh

FLtrooper wrote:It looks Awesome, Congratulations!

:)

Thank you, much appreciated :D

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Clannagh
Posts: 292
Joined: Tue Jul 15, 2014 7:37 pm

by Clannagh

Surprising what you can do in the lounge, piece of black cloth for a backdrop, lights turned down low and click away :thumbup:

tonytourist
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Joined: Sat Oct 10, 2009 7:13 am
Location: 90039

by tonytourist

One of my favorite builds, thanks for the update! :mrgreen:

Sizzler
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Joined: Sat Jan 07, 2017 2:49 am

by Sizzler

My first time seeing this, the bike is interesting but I'm more impressed by your ingenuity and ability to execute. You're clearly quite clever!

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Clannagh
Posts: 292
Joined: Tue Jul 15, 2014 7:37 pm

by Clannagh

Sizzler wrote:My first time seeing this, the bike is interesting but I'm more impressed by your ingenuity and ability to execute. You're clearly quite clever!

Thank you Im glad you like it.
I still think theres some scope on the electronic side of things. At present with front and rear lights fitted (USB rechargeable), Di2 and Garmin it requires 4 seperate cables to charge everything. Id like to have just the one built into the handlebars maybe and one battery to power the lot. Something for the future maybe :D

kulivontot
Posts: 1163
Joined: Sun May 16, 2010 7:28 pm

by kulivontot

That one might be tough, especially if your lights charge with high current, you'd effectively be looking at 3-4A parallel current. Most these devices like to charge as standalone USB devices. Not impossible, but probably a little more challenging than just shorting all the wires together

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Clannagh
Posts: 292
Joined: Tue Jul 15, 2014 7:37 pm

by Clannagh

Yes it may not be possible, my current lights are quite low voltage LED type. Im no electrical expert :roll:

Revver
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Joined: Sat May 29, 2010 3:25 am

by Revver

Since this is a weight weenies forum, any numbers for total present weight of the bike?

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Clannagh
Posts: 292
Joined: Tue Jul 15, 2014 7:37 pm

by Clannagh

Revver wrote:Since this is a weight weenies forum, any numbers for total present weight of the bike?


Good question!
I have kept notes and weights as I progressed so here goes.
On arrival in its original build I weighed it at 10.23 kilo (22.55 lbs) not exactly a lightweight.

Frame.
Original bare frame without front forks but still painted 1851g
Then the fun started.
Removed original riveted on alloy bottle bracket 44g

Removed original aluminium bonded in alloy English threaded BB casing 88g
Replaced with carbon PF30 compatible BB 45g

Removed original alloy rear dropouts including built in rear mech hanger 131g
Replaced with carbon rear dropouts and mech hanger 74g

Removed alloy front mech hanger (quite a large item on this frame) 47g
Removed carbon ‘Y’ section of frame (this is the section of frame that joins rear seat stays to main frame and provided a location for both alloy bottle cage and front mech hanger) 65g
Replaced with my own custom made ‘Y’ section of frame incorporating the new shaped section to allow mounting of the front mech bracket (this replaced the need for original 47g mech hanger alloy casting) 71g

Removed 2 layers of carbon! yes I removed 2 layers of carbon (very carefully) being old school this frame is robust to say the least. Whilst removing layers I tested deflection, its still going strong!
Standard frame bending at the beam (these frames were designed to have some bend in the beam hence why everyone that rides one comments how comfortable they are).
Original bend with a rider weighing 12 stone 3.55mm
With 2 layers removed and same rider 3.75mm bend

After all mods the frame finally weighed in at 1501g thats a saving of 350g from original.

I then painted it and added 46g bugger! So total weight of frame painted is 1546g

Original Trek Y Foil front forks 590g
Replaced with Scott Addict SL forks 339g

Original alloy bars and TT extensions (Bontrager from memory) 985gms
New carbon drop bars (I made these) 328gms

Original Mavic rear wheel 1.020 gms
bare wheel no skewer, rear cassette or tyre.
original Mavic front 805gm stripped
Total 1.825kilo

Replaced with Madfiber front wheel with tyre (it was glued on so left it on) 740g
Madfiber rear with tyre (it was glued on so left it on) 935g

Madfiber tubular wheel set is supposed to weigh 1050g, Ive not yet replaced the tyres so not actually weighed these to confirm, they feel lightweight though!

Original Dura Ace skewers 187g
New carbon skewers 43g 

Fitting Dura Ace Di2 over the original Dura Ace 7900 cable system was surprising.
A battery obviously added weight but the levers weigh less, electric cables less and the PF30 BB much lighter so all in comparing both group sets and all associated components the Di2 was heavier but only by 93g

Weight does fluctuate depending which wheel set I am running, lights fitted etc. Ultimately I wanted to build something lightweight but still intended it to be ‘usable’ and capable of withstanding UK roads, its ridden in all weathers and needs to be reliable. If I could build it to below UCI regulation weight I would be more than happy.

All of the modifications and changes of components have saved a total of 5757g from original weight.

So what does it weigh? well this morning I hung it on the work stand and weighed it. This weight is with pedals fitted no lights or Garmin but is ready to take out and ride right now.

ImageIMG_0517 by Craig McLeod, on Flickr

Revver
Posts: 18
Joined: Sat May 29, 2010 3:25 am

by Revver

Thanks. Now that you made it this far and gained the experience, if you had to begin again, what would you do differently?

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



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