Alya - Sub 5kg Hill Climb project

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CustomMetal
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Posts: 1293
Joined: Sat Dec 01, 2018 4:14 pm
Location: UK

by CustomMetal

Plan is to have a bike I can race in the U.K. hills climb season and go sub 5kg! As a change from the norm for me the frame will be plastic! (Carbon fibre)

I managed to pick up the last rim brake Tifosi Mons frame in my size (L or 56) RTP for £675.. The frame will just get prepped and clear coated with hollow gold logos by Gun Control paint so shouldn't add much to the weight. I then intend to borrow bits from other bikes I have so this bike will only be rideable for the 2 month season each year.

The Darimo bar stem will be reinforced, not because I am heavy but want the stiffness, especially as I spend most of a hills climb out of the saddle..

The plan is:
Frame - Tifosi Mons L (880g unpainted)

Fork - Tifosi Mons (326g unpainted and uncut)

Headset - stock is FSA but change to Cane Creak AER 2

Expander - Carbon Ti

Top Cap - Carbon Ti

BB - CBear DUB BB86

Seatpost Collar - Carbon Ti

Quick release- Carbon Ti

Stem - Darimo IX2 (reinforced)

Bar - Darimo Elipse 38 cm (reinforced)

Seatpost - Darimo T1 loop

Saddle - Alpitude Gardena

Garmin Mount - Alpitude

Bottle Cage - Alpitude

Brakes - EE

Shifters- Sram Red Etap 11s

Rear Derailleur- Sram red Etap 11 speed. (I have both with and without clutch so will weigh)

Pulley wheels- CBear full ceramic

Crank set - Sram red DUB

Power meter - quarq spider

Chainring - Carbon Ti (size TBC)

Pedals - dura ace

Cassette- Sram red 11-28

Chain - Sram red

Wheels - extralite hubs, AX lightness 25 Tubular with CX ray/sprint spokes from Strada wheels (target weight of 800g)

Tubs - TBC but probably corsa speeds

Bolts - gold Ti ones.. TBC
Allegra- Steel Lugs TBC
Aurelia- Stainless All Road 8.5kg
Bertha- TT 9.8kg
Perdita- Ti Turbo bike 8kg
Serenity- Ti Gravel 9.5kg/8.9kg
Verity- Ti Aero 8.2kg
Alya- Ti Climbing TBC

All weights with pedals,cages & garmin mount

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
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CustomMetal
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Posts: 1293
Joined: Sat Dec 01, 2018 4:14 pm
Location: UK

by CustomMetal

I have removed the FD mount as going 1x and removed the cable guides for shifter cables as going Etap...

the stem will be slammed so can cut the steerer down a bit.

Weight for frame included rear derailleur hanger, but had bottle cage bolts and FD mount removed. Not bad for a large frame that is meant to be incredibly stiff!
Attachments
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A1E64BF1-0943-4182-99C4-2B22F5D271A1.jpeg
AAE5EEEE-2E78-4890-B4C4-9B9CBAC168E6.jpeg
Allegra- Steel Lugs TBC
Aurelia- Stainless All Road 8.5kg
Bertha- TT 9.8kg
Perdita- Ti Turbo bike 8kg
Serenity- Ti Gravel 9.5kg/8.9kg
Verity- Ti Aero 8.2kg
Alya- Ti Climbing TBC

All weights with pedals,cages & garmin mount

CustomMetal
Moderator
Posts: 1293
Joined: Sat Dec 01, 2018 4:14 pm
Location: UK

by CustomMetal

Suggestions and thoughts most welcome! Especially on what I might of missed
Allegra- Steel Lugs TBC
Aurelia- Stainless All Road 8.5kg
Bertha- TT 9.8kg
Perdita- Ti Turbo bike 8kg
Serenity- Ti Gravel 9.5kg/8.9kg
Verity- Ti Aero 8.2kg
Alya- Ti Climbing TBC

All weights with pedals,cages & garmin mount

User avatar
onemanpeloton
Posts: 367
Joined: Wed Jul 12, 2017 11:30 am
Location: Edinburgh, UK

by onemanpeloton

Look forward to more pictures.

Don't know what your courses are like but have you considered single speed or even simply having 3 cassette cogs with spacers? I suspect some version of those 2 would be your next best savings, especially for a dedicated race machine.

EDIT - and tufo elite tyres
2020 Trek Boone
2017 Merida Reacto
2017 Trek Superfly AL

CustomMetal
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Posts: 1293
Joined: Sat Dec 01, 2018 4:14 pm
Location: UK

by CustomMetal

onemanpeloton wrote:
Fri Mar 19, 2021 9:46 pm
Look forward to more pictures.

Don't know what your courses are like but have you considered single speed or even simply having 3 cassette cogs with spacers? I suspect some version of those 2 would be your next best savings, especially for a dedicated race machine.

EDIT - and tufo elite tyres
The problem is our courses are all so varied! Some short and very sharp... other long and draggy.. hence the 1x and I just change front chain ring depending on the course.

If it was for just one particular climb then I agree a set gearing for that course would make more sense, however the 11-28 red cassette should be light and tight enough for what I need but more durable than the rotor
Allegra- Steel Lugs TBC
Aurelia- Stainless All Road 8.5kg
Bertha- TT 9.8kg
Perdita- Ti Turbo bike 8kg
Serenity- Ti Gravel 9.5kg/8.9kg
Verity- Ti Aero 8.2kg
Alya- Ti Climbing TBC

All weights with pedals,cages & garmin mount

User avatar
onemanpeloton
Posts: 367
Joined: Wed Jul 12, 2017 11:30 am
Location: Edinburgh, UK

by onemanpeloton

I guess it depends how crazy light you want to go, but given your parts list, it seems like the single speed/reduced cassette would be a huge and cheap win.

If you're changing chainring sizes anyway, then why not go single speed, save a tonne of weight and change chainrings and or/rear cog as per the course.

Only reason someone wouldn't do this is if the parcours of each individual climb varies a lot across its distance, which is why i suggested the option of using a couple of cassette cogs at the rear. 3 cassette cogs instead of 11 is a good and cheap weight saving compared to the rest of your build list
2020 Trek Boone
2017 Merida Reacto
2017 Trek Superfly AL

Emmodd
Posts: 48
Joined: Fri Nov 30, 2018 11:21 pm

by Emmodd

Looking forward to this. Roll on HC season!

Sent from my VOG-L09 using Tapatalk


Emmodd
Posts: 48
Joined: Fri Nov 30, 2018 11:21 pm

by Emmodd

CustomMetal wrote:Plan is to have a bike I can race in the U.K. hills climb season and go sub 5kg! As a change from the norm for me the frame will be plastic! (Carbon fibre)

I managed to pick up the last rim brake Tifosi Mons frame in my size (L or 56) RTP for £675.. The frame will just get prepped and clear coated with hollow gold logos by Gun Control paint so shouldn't add much to the weight. I then intend to borrow bits from other bikes I have so this bike will only be rideable for the 2 month season each year.

The Darimo bar stem will be reinforced, not because I am heavy but want the stiffness, especially as I spend most of a hills climb out of the saddle..

The plan is:
Frame - Tifosi Mons L (880g unpainted)

Fork - Tifosi Mons (326g unpainted and uncut)

Headset - stock is FSA but change to Cane Creak AER 2

Expander - Carbon Ti

Top Cap - Carbon Ti

BB - CBear DUB BB86

Seatpost Collar - Carbon Ti

Quick release- Carbon Ti

Stem - Darimo IX2 (reinforced)

Bar - Darimo Elipse 38 cm (reinforced)

Seatpost - Darimo T1 loop

Saddle - Alpitude Gardena

Garmin Mount - Alpitude

Bottle Cage - Alpitude

Brakes - EE

Shifters- Sram Red Etap 11s

Rear Derailleur- Sram red Etap 11 speed. (I have both with and without clutch so will weigh)

Pulley wheels- CBear full ceramic

Crank set - Sram red DUB

Power meter - quarq spider

Chainring - Carbon Ti (size TBC)

Pedals - dura ace

Cassette- Sram red 11-28

Chain - Sram red

Wheels - extralite hubs, AX lightness 25 Tubular with CX ray/sprint spokes from Strada wheels (target weight of 800g)

Tubs - TBC but probably corsa speeds

Bolts - gold Ti ones.. TBC
Mind if I ask the cost of the frame treatment and graphics?

Sent from my VOG-L09 using Tapatalk


NiFTY
Posts: 1493
Joined: Sat May 26, 2012 11:26 pm

by NiFTY

Re single speed all the time spent changing sprockets, chainrings and chain length will cost far more time in lost training than it will gain via reduced weight.
Evo 4.9kg SL3 6.64kg Slice RS 8.89kg viewtopic.php?f=10&t=110579" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;

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Lelandjt
Posts: 832
Joined: Tue Jan 19, 2016 7:10 am

by Lelandjt

CustomMetal wrote:
Fri Mar 19, 2021 9:53 pm
Some short and very sharp... other long and draggy.. hence the 1x and I just change front chain ring depending on the course.
Will you have a couple chains of different length to match the chainrings? That's what I did when my DH bike had different rings for different courses. Chain length and tension mattered more in DH than road but you get to shave a couple grams off the chain when using your smallest chainring.

CustomMetal
Moderator
Posts: 1293
Joined: Sat Dec 01, 2018 4:14 pm
Location: UK

by CustomMetal

[/quote]Mind if I ask the cost of the frame treatment and graphics?

Sent from my VOG-L09 using Tapatalk
[/quote]
£350 +vat if I want it good enough for warranty, £250+vat if I want it done quickly but won't qualify for warranty
Allegra- Steel Lugs TBC
Aurelia- Stainless All Road 8.5kg
Bertha- TT 9.8kg
Perdita- Ti Turbo bike 8kg
Serenity- Ti Gravel 9.5kg/8.9kg
Verity- Ti Aero 8.2kg
Alya- Ti Climbing TBC

All weights with pedals,cages & garmin mount

CustomMetal
Moderator
Posts: 1293
Joined: Sat Dec 01, 2018 4:14 pm
Location: UK

by CustomMetal

NiFTY wrote:
Sun Mar 21, 2021 8:39 am
Re single speed all the time spent changing sprockets, chainrings and chain length will cost far more time in lost training than it will gain via reduced weight.
Yeap won't bother with single speed, I already have all the stuff for a light 1x set up with etap 11speed
Allegra- Steel Lugs TBC
Aurelia- Stainless All Road 8.5kg
Bertha- TT 9.8kg
Perdita- Ti Turbo bike 8kg
Serenity- Ti Gravel 9.5kg/8.9kg
Verity- Ti Aero 8.2kg
Alya- Ti Climbing TBC

All weights with pedals,cages & garmin mount

CustomMetal
Moderator
Posts: 1293
Joined: Sat Dec 01, 2018 4:14 pm
Location: UK

by CustomMetal

Lelandjt wrote:
Sun Mar 21, 2021 8:51 am
CustomMetal wrote:
Fri Mar 19, 2021 9:53 pm
Some short and very sharp... other long and draggy.. hence the 1x and I just change front chain ring depending on the course.
Will you have a couple chains of different length to match the chainrings? That's what I did when my DH bike had different rings for different courses. Chain length and tension mattered more in DH than road but you get to shave a couple grams off the chain when using your smallest chainring.
Yes, although should be able to get away with 2, at most three chainrings so won't need too many chains.. plus I already have a few with a fair bit of life in them but nice and light
Allegra- Steel Lugs TBC
Aurelia- Stainless All Road 8.5kg
Bertha- TT 9.8kg
Perdita- Ti Turbo bike 8kg
Serenity- Ti Gravel 9.5kg/8.9kg
Verity- Ti Aero 8.2kg
Alya- Ti Climbing TBC

All weights with pedals,cages & garmin mount

CustomMetal
Moderator
Posts: 1293
Joined: Sat Dec 01, 2018 4:14 pm
Location: UK

by CustomMetal

Frame is now at Gun Control paint U.K. getting the frame rubbed down to the carbon ready for the gold decals and lacquer
Allegra- Steel Lugs TBC
Aurelia- Stainless All Road 8.5kg
Bertha- TT 9.8kg
Perdita- Ti Turbo bike 8kg
Serenity- Ti Gravel 9.5kg/8.9kg
Verity- Ti Aero 8.2kg
Alya- Ti Climbing TBC

All weights with pedals,cages & garmin mount

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Kurt1980
Posts: 319
Joined: Mon Oct 26, 2020 9:41 am

by Kurt1980

Are you reinforcing the stem yourself? I'm curious about this process.

by Weenie


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

www.starbike.com



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