Tuesday, 6 June 2017

My 2017 Race Bike: Cube AMS 100 C:68 SLT 29 Zeroblack

The bike that I will be racing the 2017 season on is...

Cube AMS 100 C:68 SLT 29 Zeroblack

Wow! That's a long name! Here's Cube's promotional photo:




I first got interested in the bike when I read some articles about it last Autumn. The talking point was the weight: 8.9kg! Wow! Even Cube's site states the weight at:


When I finally got the bike delivered (it was almost 2 months late) I checked it out and weighed it (without pedals obviously) and it came to....:


Now that's more than 8.9 kg! Okay, so mine is the 20" frame and perhaps the smaller frames are a bit lighter. But I seriously doubt that they'r half a kilo lighter. Also keep in mind that Cube supplies these bikes with very light tires: Schwalbe Rocket Ron 2.1 Liteskin in front, and Thunder Burt 2.1 Liteskin in the rear (weighing in at about 500 grams and 400 grams respectively)


Losing Weight

The wheels are really light at 1300 grams.


BUT they are not real Boost wheels, they just use adapters. Which is a bit of a disappointment.

I tubeless converted the wheels

Got rid of some very heavy rim tape:


The tires that I mounted are Schwalbe Rocket Ron 2.1 Snakeskin which weigh in at 550 grams each. Most marathon races I will use a Schwalbe Thunder Burt 2.1 Snakeskin at the rear which is 50 grams lighter.

The brake disks are light, but You can save almost 100 grams by going with Ashima. I have purchased a couple of Ashima ones which are going on the bike.



The saddle is all carbon fiber, no padding... and VERY light!


The seat tube is just a regular carbon one... not particularly light

Same for the handle bars... not that light.

I replaced the handle bars with with one from Bike Ahead and saved about 100 grams. Also it looks nicer


The grips are foam grips but HEAVY. I replaced them with my own ones



So I mounted some light pedals, a bottle cage and Garmin mount. And the weight came to...

The Final Verdict


9.42 kg


Remember the original weight was WITHOUT pedals, and with Liteskin Thunder Burt in the rear. So I've saved perhaps some 300-400 grams.

But How Does the Cube Ride?

It's a very nice bike. I've ridden four races on it now and it feels very quick. I was surprised that I felt that I could trust the bike at once lean into turns. It's very quick to react and feels more like a XCO bike than an XCM bike.

When it comes to damping performance my BMC Fourstroke is a lot more subtle and goes better over roots and rocks. I'm not sure if this is because the Fourstroke has the old Fox CDT shocks which have three different settings, the new one has the Fox Stepcast with only two modes. Or if it's because of the different geometries of the two bikes. The Cube is half a kilo lighter than the BMC.

Another difference is that the Cube feels lighter in the front than the BMC Fourstroke does. That's a good thing obviously.

I'm still working on adjusting and trimming in the dampers on the Cube so that part could get better with some more experimenting.

Here's just a bunch of photos of the bike

















21 comments:

  1. dear alexander i read that the size of your bike is 20' but i think that is 22' so what is correct?
    so the 9.4 kg is for 22' not for 20'

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  2. dear alexander i read that the size of your bike is 20' but i think that is 22' so what is correct?
    so the 9.4 kg is for 22' not for 20'

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  3. No, it's 20". Why do you think it's 22"?

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  4. well in the seat tube area in the 4th picture from start,between blue lines the last number i could see says 2,which is black,so the first is another a 2 so 22''.I have seen all the sizes and i can recognize different sizes.

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  5. Hej!
    Hur tycker du cuben är nu när du justerat dämpningen lite mera? Hur upplever du hjulen?
    Klas

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    1. Hej Klas,

      Jag fick till dämpningen bra till Beskidy Trophy där det var riktigt extrema utförskörningar. Där var hojen lika snabb som min BMC Fourstroke var året innan. Däremot, över rotiga eller steniga sektioner så upplever jag den inte lika följsam som BMCn, eller för den delen like snäll som min Trek SUperfly var. Det kan bero på att Cube:n är mer styv och XC-aktig, men kanske även att jag behöver jobba med dämpningen ännu mer. Osäker på det.

      På ett rent 'teoretiskt' plan så är jag besviken på att hjulen inte är "riktiga" Boost-hjul. Men det är inget som jag märker när jag cyklar på hojen (kanske för att jag aldrig har cyklat på en cykel med Boost "hela vägen"). De väger 1300 gram och det är bra... Om hojen hade levererats med 'vanliga' hjul, som de flesta andra märken gör, och jag hade behövt köpa till tävlingshjul med samma vikt, så hade det kostat mig i runda slängar 15-20kkr.
      Jag har tittat lite närmare på hjulen nu efter Beskidy där de tar en del stryk och jag kan inte se några skador. Det är bra betyg.

      Har du också en Cube?

      /Alex

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    2. Hej!
      Trevligt med ett utförligt svar. Jag funderar på att köpa en. Cyklar nu med en ett par år gammal Giant Anthem som jag tycker är följsam och trevlig(liknande geometri som BMC) men skulle vilja ha en som är lättare. Nackdelen med min Anthem är att den inte är så styv som jag önskar och lite "gungig" i branta klättringar. Som jag förstår dig så blir jag med en Cube av med nackdelarna med min nuvarande cykel men förlorar lite av följsamheten i rotpartier. Man kan inte få allt😉
      Klas

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    3. Hej,

      Jag upplever kanske den här Cube:n lite mer som den Specialized Epic S-works som jag hade för några år sedan. Mycket rapp och kvick att styra in.

      För dig personligen så beror naturligtvis hojvalet på vilken sorts cykling du brukar syssla med. Ska du inte köra tävlingar på den så kanske inte rappheten behövs. Jag tycker att den BMC Fourstroke som jag har är den mest körglada hojen som jag någonsin haft... och det är något jag uppskattar mycket när jag kör mina favoritrundor på den i skogen. (Sen visade den sig vara en grym tävlingshoj också... så det var bara en bonus)

      Jag tycker också att det är bra och kul att testa andra sorters hojar bara för att märka av skillnaden. Om man inte testat olika sorter så vet man inte vad som passar en bäst.

      /Alex

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  6. Hi,

    I was starting to write that WHEN your Fox reomote fails, go with the dt swiss remote but then I notice that in some pictures you already have it! :)
    Rims seems to be amazing and very durable for the weight. Dont worry about any boost convertions. I have had many boost rims and I dont notice any difference between these.

    There are maybe some similarity with Epic s-works with handling but still Cube is more peacefull in rockgardens with its 70 degree headangle compared to Epics 71,5 (world cup).

    So far I love this bike. I have some obsession to try to run it as low as 8,9-9kg (20" size including pedals etc.)But this will require going to 1x10 drivetrain with sram XX rear derailleur, cassette and shifter. Dont know will my thigs agree with me :D

    Antti

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    Replies
    1. Hiya Andy,

      Yeah, the remote failed after perhaps five or six sessions. I got both a DT Swiss remote and a Synkros (like the ones Scott are using) but I decided to use the DT Swiss (which I previously had on my BMC). It's metal compared to the Fox which is mostly plastic. I actually found the bit that broke on the Fox and it's a really small plastic piece which never should be allowed to be subjected to any force.

      I do like the Cube a lot. Above, in Swedish, I write that the only thing I haven't been able to do is get it as subtle and smooth over roots and rocks as my BMC Fourstroke is. That may still be a question of damper settings (even though I've really worked hard on those), or perhaps it's the combination of the frame and the newer Fox dampers. I have the old Fox on the BMC Fourstroke.

      9.4kg with pedals is ok... I can't survive on a 1x10 system with the kind of races that I do. But sure, losing some more weight would be possible. The seat tube isn't super light.

      I had problems with the rear of the bike being 'lose' but it turned out to be the Boost adapter on the rear wheel. It was tightened by a mechanic and now the rear is firm. Someone with the exact same Cube told me that it only works temporarily and then the rear wheel becomes lose again but it hasn't happened to mine again (yet).

      Overall there are some minor things that nag me with the Cube that are almost not worth mentioning: The cable housing make noises inside of the frame. The rubber things that hold the cables inside the frames pop out all of the time. Small things, but still annoying...

      /Alex

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    2. That same plastic part failed with me also with the fox remote. Dt swiss is also much lighter.

      I feel you with the roots here in Finland :D (I suck with Swedish lanquage so I try to write English)
      First thing that I did was throw away every manual and everything I know about setting sags. Because of the good lockout in front and rear, I run very low pressures (don't even know numbers, I go by the feel). That works fine foe me here in rooty/rocky sections. I still think it is quite pedal effective with shocks open. Not the best but good. Maybe you can add. tokens to front and lower pressure more so it becomes even more small pump sensitive? I think fox stepcast have only 2 tokens/air volume spacers stock.

      I race also and don't know if I can survive with 1x10 eather, but in the other hand, then I must force myself to push uphills faster with the same cadence.

      You can install little and light "foam-pipe" inside frame, around the cables. That will stop the noises.

      I had the same problem with little rubber things out of the shop and it was really annoying. I think they were not installed correctly so I pushed them firmly inside with little flat screwdriver in and sprayed silicon to make the rubber and housing work soft and smoothly. I haven't had any problems since, but I spray that silicon every now and then.

      Antti

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    3. Yeah, I think that I'm not experienced enough with setting up the suspension to go quite that far. I slowed down the rebound quite a lot to make it more smooth. Also the pressure I put so that the whole range of the damper is used. Also twisted the top of the front damper to 'soft'.

      Good advice! Thanks!

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  7. Hi Alexander, from Newmen site they spec their hubs as real Boost 110/148 with increased flange. is your wheels prototype or something ? http://www.newmen-components.de/application/filebrowser/master/User_Manuals/Hub_Dimension_Description_ver-03.pdf. VBR Tor

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    1. No, not prototype. I've met several cyclists during the races this season with the Cube and their wheels have all had the adapters.

      I don't think the specifications reflect reality.

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    2. (I'm guessing this is a decision the Cube made, not Newmen)

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  8. Hello,
    Do you know the real frame weight?
    Thanks

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    Replies
    1. My L size frame weighted 2420g with only the rear shock.

      Antti

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    2. My L size frame weighted 2420g with only the rear shock.

      Antti

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    3. A 2420g frame on 9,5kg bike?? Wowww
      Thanks for the information

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    4. Yes, weight was dissapointment. Also my Newmen rims weighted 1386g instead of the claimed 1195g. And yes, my scales are fine.
      Claimed 8.9kg for the bike is with 15" size, without pedals and liteskin tires.
      I manage to get bike about 9.5kg but with high end components.

      Went for Epic 2018 fullsusp. with frame 2020g and now going to my target 8.9kg with everything on.

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    5. Thanks! 2018 epic is the real machine, but the price...

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