TCR Bolt Schematic
-
- Posts: 17
- Joined: Wed Dec 31, 2014 9:23 am
TCR Bolt Schematic
Postby the green machine » Wed Dec 31, 2014 10:15 am
Short of pulling out each bolt, has anyone previously been able to obtain a bolt schematic for a 2013 Giant TCR 3, so the steel bolts can be replaced with Ti or Alu.
Why you ask?
As ridiculous as it may seem to some, I'm trying to shed some weight from my TCR without sacrificing structural integrity.
At the moment I have her down to 7.2kgs while running Di2 Ultegra 6800, DA carbon pedals, DA 12-27 cassette, DA C24 wheels, San Marco carbon saddle. (I'm waiting for my new Powercordz and Nokon housing to arrive)
I realise that I could simply go to a mech group set to shed some grams, but those who have Di2, know how good it is. So that's the only place which isn't being considered.
Cheers in advance.
-
- Posts: 432
- Joined: Sun Feb 02, 2014 2:54 pm
Re: TCR Bolt Schematic
Postby Dirty32 » Wed Dec 31, 2014 11:00 am
What colour is the bike?
What Brakes are you running?
Seatpost, bars, stem, bartape etc?
Might be other ways of dropping the weight without resorting to having to replace every single bolt.
- mitchy_
- Posts: 878
- Joined: Sun Jan 05, 2014 11:15 am
- Contact:
Re: TCR Bolt Schematic
Postby mitchy_ » Wed Dec 31, 2014 11:45 am
derailleurs have kits available but as someone who has replaced all the bolts with Ti, i'd be measuring the rest regardless. stems can vary in the head type and thread length (narrow or tapered head.. then from ~12-20mm long), seat post clamp bolts vary in size and length (M5/M6)
-
- Posts: 17
- Joined: Wed Dec 31, 2014 9:23 am
Re: TCR Bolt Schematic
Postby the green machine » Thu Jan 01, 2015 12:01 pm
Giant carbon SLR integrated bars/stem wrapped with Lizardskins tape which is held in place with 2 x Ti bolts and Al top cap/bolt;
Full Ultegra Di2 - Mid Compact 6800 (I did have DA 7900 53/39, but ditched it for the middie);
DA - carbon pedals;
- 12/27 cassette;
- WH9000 C24 wheels and mounted with latex tubes on Conti GP II's;
- chain;
Bontrager RXXL carbon bindons with Al bolts;
San Marco carbon Concor saddle on a ISP.
As mentioned before, I'm waiting for the Nokon brake housing and Powercordz to arrive. Hopefully I can save some weight by stripping out the steel cables.
By changing the bolts, I'm assuming that's more than likely the only place left to be razored without spending a months salary. LOL
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: TCR Bolt Schematic
Postby Duck! » Thu Jan 01, 2015 12:11 pm
-
- Posts: 17
- Joined: Wed Dec 31, 2014 9:23 am
Re: TCR Bolt Schematic
Postby the green machine » Thu Jan 01, 2015 6:49 pm
Hence the reason of trying the Powercordz!Duck! wrote:Nokon cables are crap - more drag than Priscilla Queen of the Desert.
-
- Posts: 432
- Joined: Sun Feb 02, 2014 2:54 pm
Re: TCR Bolt Schematic
Postby Dirty32 » Fri Jan 02, 2015 12:54 pm
All the stuff you are running seems pretty light (and pretty decent spec), so I wouldnt think you've got a hell of a lot more scope for massive weight reductions without pretty deep pockets.
The only other suggestion I have is to keep an eye out for a higher spec TCR frame in the correct size (or similar frame from any other manufacturer, offering similar geo - you'll get better carbon layup using a higher grade composite), but that's not really a cheap option, either. I dont know exactly how much weight you'd save moving from an SL3 to an SL0 say (maybe nothing - difference could be in the spec of groupset, rather than any difference in the frame). Having said that, with the kit you are currently running, you'd have a pretty nice bike regardless!
-
- Posts: 17
- Joined: Wed Dec 31, 2014 9:23 am
Re: TCR Bolt Schematic
Postby the green machine » Sat Jan 03, 2015 11:03 pm
One day soon, I'll consider grabbing a Propel. Hopefully that will satisfy my lean tendencies.
Until then it seems I'm at the end of the road.
- mitchy_
- Posts: 878
- Joined: Sun Jan 05, 2014 11:15 am
- Contact:
Re: TCR Bolt Schematic
Postby mitchy_ » Sat Jan 03, 2015 11:11 pm
a comparable Defy Advanced will be lighter than a Propel. the Propel sacrifices weight for better aero.the green machine wrote:Cheers Dirty...I appreciate the feedback. Agreed point in relation to the models. To the best of my knowledge, the only difference between a 3 & a 0 is the groupset.
One day soon, I'll consider grabbing a Propel. Hopefully that will satisfy my lean tendencies.
Until then it seems I'm at the end of the road.
- Duck!
- Expert
- Posts: 9876
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: TCR Bolt Schematic
Postby Duck! » Sun Jan 04, 2015 3:54 pm
Yes, the frames are the same. As Mitchy said, avoid the Propel if it's absence of weight you're after - aero profiling & stiffness under power requires more material to achieve, resulting in a comparitive porker. The Defy Adv. SL is Giant's lightest road frame, just depends if you're willing to trade off some aggro in the geometry to satisfy your weight weeny-ism.the green machine wrote:Cheers Dirty...I appreciate the feedback. Agreed point in relation to the models. To the best of my knowledge, the only difference between a 3 & a 0 is the groupset.
One day soon, I'll consider grabbing a Propel. Hopefully that will satisfy my lean tendencies.
Until then it seems I'm at the end of the road.
- KGB
- Posts: 1629
- Joined: Tue Jul 12, 2011 3:49 pm
Re: TCR Bolt Schematic
Postby KGB » Sun Jan 04, 2015 5:51 pm
Ti for anything vital, Al for anything less likely to result in death if it fails!
I'm surprised nobody has posted the standard response to weight weenie style questions: take a dump before the ride, lose some weight on your body first, it won't make any difference, blah blah blah. BOOO!
Post back with any results!
- mitchy_
- Posts: 878
- Joined: Sun Jan 05, 2014 11:15 am
- Contact:
Re: TCR Bolt Schematic
Postby mitchy_ » Mon Jan 05, 2015 10:07 am
i dont think there are even 100-150g worth of bolts on a bike...KGB wrote:Try posting on the weight weenies forum. On a standard bike, it's not hard to save 100-150g with some "bolt tuning". Not sure how much you'll save if you've already done stem etc but go for it anyway.
Ti for anything vital, Al for anything less likely to result in death if it fails!
I'm surprised nobody has posted the standard response to weight weenie style questions: take a dump before the ride, lose some weight on your body first, it won't make any difference, blah blah blah. BOOO!
Post back with any results!
-
- Posts: 17
- Joined: Wed Dec 31, 2014 9:23 am
Re: TCR Bolt Schematic
Postby the green machine » Mon Jan 05, 2015 1:09 pm
I reckon you'd be right too! LMAO
-
- Posts: 17
- Joined: Wed Dec 31, 2014 9:23 am
Re: TCR Bolt Schematic
Postby the green machine » Sun Feb 15, 2015 10:26 am
To date, all bolts were considered in a case by case basis. However things went a bit sideways with only the rear derailleur bolt being done after all. The front and rear brake main bolt is yet to be undertaken, but still on the cards.
The most significant and surprising was replacing 99% of all cable housing with a Nokon housing system. The only place of difficulty was the rear derailleur as it made shifting sloppy. I also replaced the brake cables with Powercordz. A great upgrade IMO.
Getting back to the theme of the thread though, has anyone got some tips on changing the main bolts on the brakes?
So far I've managed to shed two hundred grams with the bolts and cabling.
And btw there maybe naysayers about the project, which is fine with me. But at the end of the day I'm enjoying the project.
- General Australian Cycling Topics
- Info / announcements
- Buying a bike / parts
- General Cycling Discussion
- The Bike Shed
- Cycling Health
- Cycling Safety and Advocacy
- Women's Cycling
- Bike & Gear Reviews
- Cycling Trade
- Stolen Bikes
- Bicycle FAQs
- The Market Place
- Member to Member Bike and Gear Sales
- Want to Buy, Group Buy, Swap
- My Bikes or Gear Elsewhere
- Serious Biking
- Audax / Randonneuring
- Retro biking
- Commuting
- MTB
- Recumbents
- Fixed Gear/ Single Speed
- Track
- Electric Bicycles
- Cyclocross and Gravel Grinding
- Dragsters / Lowriders / Cruisers
- Children's Bikes
- Cargo Bikes and Utility Cycling
- Road Racing
- Road Biking
- Training
- Time Trial
- Triathlon
- International and National Tours and Events
- Cycle Touring
- Touring Australia
- Touring Overseas
- Touring Bikes and Equipment
- Australia
- Western Australia
- New South Wales
- Queensland
- South Australia
- Victoria
- ACT
- Tasmania
- Northern Territory
- Country & Regional
Who is online
Users browsing this forum: No registered users
- All times are UTC+10:00
- Top
- Delete cookies
About the Australian Cycling Forums
The Australian Cycling Forums is a welcoming community where you can ask questions and talk about the type of bikes and cycling topics you like.
Bicycles Network Australia
Forum Information
Connect with BNA
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.