2018 Giant TCR Advanced SL Disc - Clearance for 28 mm Conti GP 4000s?

Discuss light weight issues concerning road bikes & parts.
Bordcla
Posts: 248
Joined: Wed Dec 20, 2017 3:42 pm

by Bordcla

Title says it all: do we know for certain whether that frame can accomodate these fatter-than-most 28c tires? Looking for people who actually ride them as opposed to "it should"-type answers. Thanks!

by Weenie


damond
Posts: 197
Joined: Thu Jun 03, 2010 12:47 pm

by damond

Not exactly the answer you're looking for but here it goes. I use a 2017 Rim brake TCR advanced SL and i can run 28mm Vittoria Corsa's on them with still some decent clearance. Then again, I know for certain 28mm Corsa's are not as wide as 28mm GP4000 but we're talking about the rim version, not the disc.

Anyway, my LBS delivered an Advanced SL Disc last week with a pair of 28mm Schwalbe's one mounted on the new tubeless Zipp 303. I am pretty sure the schwable's and the GP4000 have a similar width..

Hope that helps

circuithero
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Joined: Tue Dec 19, 2017 5:08 am

by circuithero

They will definitely fit. I've installed a few 28mm Schwalbe ones and they measure about 29-30mm on the stock Giant carbon wheels.

Bordcla
Posts: 248
Joined: Wed Dec 20, 2017 3:42 pm

by Bordcla

I've read that the 28 Conti's measure our to more than 31mm... Hence my wanting to make sure!

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mpulsiv
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by mpulsiv

Width should be the least of your worries with disc frames. There are no tires in 28mm that run as wide and as high as Conti GP 4000S. Mine measure ~31mm wide and 29mm high. Details specs www.bicyclerollingresistance.com/specia ... i-23-25-28

There’s so much volume in this tire that you can run at 60 psi and the ride is still firm. It’s irrelevant if you are 140lbs or 200 lbs.
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boots2000
Posts: 1551
Joined: Mon Oct 15, 2007 9:28 pm

by boots2000

I can't help you with whether that tire fits in the Giant, but the GP4000 II 700x28mm is my favorite road tire.

I was shopping for a disc road bike- one of the "must haves" was clearance for this tire.

I ended up getting a Scott Addict RC disc- It comes spec'd with GP4000 in 700x28mm.

jlok
Posts: 1059
Joined: Tue Jun 30, 2015 3:30 am

by jlok

I have the TCR SL disc and tried the gp4k2 28c on my Roval CLX and it's really tight. I'm afraid if you got a big quads and could push much torque the tire may touch the rear stay.... I think the relatively safe max width would be 30mm effective. Hope this help.

Update: I could barely slip and move a 3mm hex between the rear stay and the Padrone 28mm (30mm effective at 85psi).
Litespeed T1sl Disc / BMC TM02 < Giant Propel Advanced SL Disc 1 < Propel Adv < TCR Adv SL Disc < KTM Revelator Sky < CAAD 12 Disc < Domane S Disc < Alize < CAAD 10

Bordcla
Posts: 248
Joined: Wed Dec 20, 2017 3:42 pm

by Bordcla

jlok wrote:
Sat Dec 30, 2017 9:40 am
I have the TCR SL disc and tried the gp4k2 28c on my Roval CLX and it's really tight. I'm afraid if you got a big quads and could push much torque the tire may touch the rear stay.... I think the relatively safe max width would be 30mm effective. Hope this help.

Update: I could barely slip and move a 3mm hex between the rear stay and the Padrone 28mm (30mm effective at 85psi).
How much bigger are the Conti's compared to the Padrones?

How much side clearance is necessary?

hannawald
Posts: 575
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Location: Czech Republic

by hannawald

as for side clearance i think it should be at least 4mm on each side

Delorre
Posts: 966
Joined: Sat May 24, 2014 12:09 pm

by Delorre

hannawald wrote:
Sun Dec 31, 2017 7:05 pm
as for side clearance i think it should be at least 4mm on each side
3mm at each side is enough. This what I've had on my Addict for the last year (15.000km's) , without any issue :wink:

LiquidCooled
Posts: 113
Joined: Mon Oct 02, 2017 5:46 am

by LiquidCooled

Bordcla wrote:
How much bigger are the Conti's compared to the Padrones?
FWIW, I've often read that the 28mm GP4Ks are 31mm effectively. It's going to depend on the wheels, too, obviously.
2017 Giant TCR Advanced Pro 0 Disc
2003 Cannondale R1000 (CAAD7)

Bordcla
Posts: 248
Joined: Wed Dec 20, 2017 3:42 pm

by Bordcla

Sounds like the verdict isn't really out yet; so far only one actual rester and it sounds like he wouldn't run that set up again (on the CLX50s)?

Bordcla
Posts: 248
Joined: Wed Dec 20, 2017 3:42 pm

by Bordcla

I'm surprised there aren't more reports from owners. I would have thought that TCR SLs would be popular on WW and that the GP4000 is so common that it wouldn't be hard to come across people who have tried the combo and can report on whether lack of stay clearance and rubbing are issues or not?

jlok
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Joined: Tue Jun 30, 2015 3:30 am

by jlok

28c GP4000S2 taken last year. sorry I didn't bother trying it on the front

Image

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Litespeed T1sl Disc / BMC TM02 < Giant Propel Advanced SL Disc 1 < Propel Adv < TCR Adv SL Disc < KTM Revelator Sky < CAAD 12 Disc < Domane S Disc < Alize < CAAD 10

by Weenie


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TonyM
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Joined: Thu Jan 22, 2015 4:11 pm

by TonyM

Bordcla wrote:I'm surprised there aren't more reports from owners. I would have thought that TCR SLs would be popular on WW and that the GP4000 is so common that it wouldn't be hard to come across people who have tried the combo and can report on whether lack of stay clearance and rubbing are issues or not?
WW is more about exclusive frames, parts and bikes than mainstream manufacturers....

Giant owners on WW will most probably upgrade their stock bikes with better or more expensive wheels etc....


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