BMC TimeMachine Road 2019

Discuss light weight issues concerning road bikes & parts.
TommyGunz
Posts: 14
Joined: Sat Feb 16, 2019 6:05 pm

by TommyGunz

spdntrxi wrote:
Tue Feb 19, 2019 3:52 pm
Ettore wrote:
Tue Feb 19, 2019 6:51 am
spdntrxi wrote:
Mon Feb 18, 2019 10:48 pm
I'm still waiting... LBS said April now.. full bike would be sooner (but $$$$) With my saddle height only being around 69cm.. I'll have next to no seatpost showing on a 51..not a good look. The spacers arent a good look either but it's preferred over the alternative for me.
It has the most extreme stack and reach of all BMC platforms, it's not for everyone. Glad you can still fit okay on a 47.
no kidding.. it is an odd one.
Going back to the earlier comment about spacers, I just noticed the SystemSix Aero bike reviewed by Simon of GCN also have a bunch of spacers on the setup. Then again on the BikeRadar Timemachine test bike.

I wonder if it's by design to be more aero? Or angle of the bike's top tube to make it more aero, then making it have more steerer tube showing...
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Screenshot_20190219-205553_YouTube.jpg
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2019 BMC TimeMachine Road 01
2018 BMC RoadMachine 02 Two
2018 Canyon Grail

by Weenie


TiCass
Posts: 227
Joined: Thu Aug 04, 2016 1:13 pm

by TiCass

Yeah I believe that the the combo "horizontal stem + lots of spacers" is more aero than regular stem with less spacers.

Also, I did some research to see what other manufacturers recommended as spacers limit. In the case of the Cervelo S3 2019, it's 4 cm. I couldn't find it for BMC. My main concern was the safety aspect of that type of setup. It looks a bit goofy, certainly not the stiffest setup, but as long as it's safe... it's fine.

spdntrxi
Posts: 3133
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

I case the case of aero bike reviews... you are seeing the spacers mainly because they are not allowed to cut the steerer.

Ettore
Posts: 101
Joined: Fri Nov 03, 2017 8:44 am

by Ettore

spdntrxi wrote:
Wed Feb 20, 2019 3:52 am
I case the case of aero bike reviews... you are seeing the spacers mainly because they are not allowed to cut the steerer.
But on the BMC one can simply undo two bolts, remove spacers from underneath the stem and add some round ones on top, if they want to get to their preferred stack and reach.

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Calnago
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Joined: Sun Nov 07, 2010 9:14 pm

by Calnago

Image
When I see stuff like this I just want to peek inside to see where waterflow goes when it gets in there, and it will get in there. Can it somehow make its way to the bearings? Either directly or by dripping down the walls and into the bearing seats? Or pool up somewhere that could start the corrosion process?
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spdntrxi
Posts: 3133
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

Ettore wrote:
Wed Feb 20, 2019 8:17 am
spdntrxi wrote:
Wed Feb 20, 2019 3:52 am
I case the case of aero bike reviews... you are seeing the spacers mainly because they are not allowed to cut the steerer.
But on the BMC one can simply undo two bolts, remove spacers from underneath the stem and add some round ones on top, if they want to get to their preferred stack and reach.
pick your poison... I still think the bike with photograph better then spacers on the bottom vs top

Ettore
Posts: 101
Joined: Fri Nov 03, 2017 8:44 am

by Ettore

spdntrxi wrote:
Wed Feb 20, 2019 4:31 pm
Ettore wrote:
Wed Feb 20, 2019 8:17 am
spdntrxi wrote:
Wed Feb 20, 2019 3:52 am
I case the case of aero bike reviews... you are seeing the spacers mainly because they are not allowed to cut the steerer.
But on the BMC one can simply undo two bolts, remove spacers from underneath the stem and add some round ones on top, if they want to get to their preferred stack and reach.
pick your poison... I still think the bike with photograph better then spacers on the bottom vs top
I totally agree, I just don't understand why journalists wouldn't try to get their best fit, if it's so simple. They can, and they don't have to cut the steerer.

Jugi
Posts: 542
Joined: Sun Jun 24, 2018 8:10 am

by Jugi

I assume when the test ride takes place on a ”test event” put together by the manufacturer, the mileage ridden doesn’t add up to very much and it’s both the manufacturer’s and publication’s interest to have the product looking ”tidy” in all pictures and videos made during the event. Therefore it might be best practice to keep adjustments quite rudimentary, and the bikes looking close to how they appear in manufacturer’s own material.

It seems sometimes journalists do get to keep and long term test some bikes for months. In that case, it would be more than reasonable to have the fit dialed in completely.

CAAD8FRED
Posts: 213
Joined: Mon Jun 18, 2018 10:52 pm

by CAAD8FRED

Calnago wrote:
Wed Feb 20, 2019 4:21 pm
Image
When I see stuff like this I just want to peek inside to see where waterflow goes when it gets in there, and it will get in there. Can it somehow make its way to the bearings? Either directly or by dripping down the walls and into the bearing seats? Or pool up somewhere that could start the corrosion process?
Water that gets into that part of the frame is routed down the fork and out of a pre-drilled hole.

TommyGunz
Posts: 14
Joined: Sat Feb 16, 2019 6:05 pm

by TommyGunz

Calnago wrote:
Wed Feb 20, 2019 4:21 pm
Image
When I see stuff like this I just want to peek inside to see where waterflow goes when it gets in there, and it will get in there. Can it somehow make its way to the bearings? Either directly or by dripping down the walls and into the bearing seats? Or pool up somewhere that could start the corrosion process?
From CGN around the 1:20 mark answers this question. Either comes out from the bottom bracket and/or holes on the frame for cable routing, and/or holes on chain stay. It works its way out. Not a lot of water usually pools in but if necessary, remove seatpost and flip frame.

https://youtu.be/HQBSzeaBspg
2019 BMC TimeMachine Road 01
2018 BMC RoadMachine 02 Two
2018 Canyon Grail

TommyGunz
Posts: 14
Joined: Sat Feb 16, 2019 6:05 pm

by TommyGunz

spdntrxi wrote:
Wed Feb 20, 2019 3:52 am
I case the case of aero bike reviews... you are seeing the spacers mainly because they are not allowed to cut the steerer.
Here's another one. Giacomo Nizzolo of Team Dimension Data after his win of the sprint stage yesterday. I'd say the tall steerer tube/spacers is also due to frame design.
Attachments
IMG_20190221_073725.jpg
2019 BMC TimeMachine Road 01
2018 BMC RoadMachine 02 Two
2018 Canyon Grail

Ettore
Posts: 101
Joined: Fri Nov 03, 2017 8:44 am

by Ettore

TommyGunz wrote:
Thu Feb 21, 2019 1:51 pm
spdntrxi wrote:
Wed Feb 20, 2019 3:52 am
I case the case of aero bike reviews... you are seeing the spacers mainly because they are not allowed to cut the steerer.
Here's another one. Giacomo Nizzolo of Team Dimension Data after his win of the sprint stage yesterday. I'd say the tall steerer tube/spacers is also due to frame design.
The stack is -10mm compared to SLR, to accomodate extreme positions.

JLBSLR
Posts: 32
Joined: Tue Aug 14, 2018 6:16 am
Location: Australia

by JLBSLR

The the aero ICS stem has a lower stack compared to the regular ICS stem. It’s also -15 deg compared to -12mm. With the less frame stack this would explain the extra spacers compared to what they would ride on the TeamMachine

spdntrxi
Posts: 3133
Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

TommyGunz wrote:
Thu Feb 21, 2019 1:51 pm
spdntrxi wrote:
Wed Feb 20, 2019 3:52 am
I case the case of aero bike reviews... you are seeing the spacers mainly because they are not allowed to cut the steerer.
Here's another one. Giacomo Nizzolo of Team Dimension Data after his win of the sprint stage yesterday. I'd say the tall steerer tube/spacers is also due to frame design.
mine will certainly look about like that.

by Weenie


TommyGunz
Posts: 14
Joined: Sat Feb 16, 2019 6:05 pm

by TommyGunz

JLBSLR wrote:
Fri Feb 22, 2019 12:19 am
The the aero ICS stem has a lower stack compared to the regular ICS stem. It’s also -15 deg compared to -12mm. With the less frame stack this would explain the extra spacers compared to what they would ride on the TeamMachine
I agree. This seems to be the case.
2019 BMC TimeMachine Road 01
2018 BMC RoadMachine 02 Two
2018 Canyon Grail

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