CX Build: Trek Crockett Disk 2018

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Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

Sold my cross bike and now plan to reinvest in this build; aiming for £1300 and 8.6kg using some parts I already have.


Frameset: Trek Crockett 2018 50cm
Seatpost: Canyon S13
Saddle: Bontrager Race
Stem: Kalloy Uno (90mm)
Handlebar: Zipp Service Course SL80 (40cm)
Pedals: Shimano M540
Wheels: Hunt 4 Season Disk
Tyres: Callenge Limus
Shifters: Ultegra R8020
Brakes: Ultegra R8070
Rear Derailleur: Ultegra RX
Crankset: Ultegra 6800 170mm
Chainring: Garbaruk 40t
Cassette: Sunrace CSRX1 (11-36)


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by Weenie


Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

The Ultegra Rx derailleur arrived yesterday, bang on the money at 242g.
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Also received the Garbaruk 40t chainring which came in 1g under the expected weight at 79g. I plan to reuse an old Ultegra chainset which had a buckled chainring - not a perfect colour match but I might look into getting it powder coated black in the future.
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Last edited by Rodigan on Sat Sep 01, 2018 9:04 pm, edited 1 time in total.

Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

I managed to source a Zipp SL80 handlebar for £45 but unfortunately it came in at a hefty 257g for a 40cm. The drops are quite long on this model so I may remove ~25mm from the bar ends once it's mounted, this will likely give my knees a bit more space when navigating obstacles out the saddle too.

The Uno stem weighs in at 103g with the standard bolts, these will be replaced with Ti bolts before mounting.
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sennder
Posts: 66
Joined: Mon Aug 08, 2016 12:13 pm

by sennder

Looks great so far! I have been considering a similar Crockett build with Sram Force 1 for a while. Looking forward to seeing how this turns out.

--Sennder

Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

I almost built this up with SRAM, even ordered some parts, but I had a last minute change of heart and decided to stick with Shimano. I put together a build sheet for it though so this might help if you're interested:
Attachments
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Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

P.S. The SRAM Force 1 crank is north of 700g for the GXP version so you might want to buy something else to keep your build weight down!

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FIJIGabe
Posts: 1600
Joined: Tue Sep 11, 2012 6:07 pm
Location: The Lone Star State

by FIJIGabe

Looks like a solid build. I recently rebuilt mine to go 1x, and went with an XT Di2 rear derailleur, since the Ultegra RX stuff wasn't out on the market, yet. I definitely like the chainrings, even though the color is a little off. I used a Wolftooth 38T ring, and had the stock 6800 covers shaved down by 2mm by a machine shop, to maintain the look.

I think you can definitely hit your weight goal, but I would look to replace the saddle. I would also keep the stock steel bolts on the stem, because the last thing you want to have happen during a CX race is to hit a bump and have those bolts fail.
Madone 9 https://goo.gl/7UwZpV
Crockett https://goo.gl/f5PdCN
Madone 5 https://goo.gl/cMdyFo

Madone 4, Cobia. I own a lot of Treks.

Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

@FIJIGabe - Can you post a picture of your chainring? It sounds pretty cool, I like the ingenuity of it.

I'm not overly concerned about the Ti bolts failing as I've been using them for years and I'm tiny! Probably a different story for big blokes or anyone racing enduro though.

The saddle is a hand-me-down from my Emonda so it's free, but I'd love to find something lighter. Any suggestions? I don't want to use anything too high end offroad and it would have to be durable enough for remounts and crashes.

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FIJIGabe
Posts: 1600
Joined: Tue Sep 11, 2012 6:07 pm
Location: The Lone Star State

by FIJIGabe

Sure, not a problem! Sorry for the dirt on the bike, I haven’t washed it since my last gravel ride (Saturday).
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Free saddles are great. Personally, I’ve found great deals on eBay for Bontrager saddles, even high-end one’s. I know the ones I like (Affinity RXL’s for Road, Evoke RXL for Off-Road), and I’ve only ever had a problem with the newer Affinity Pro saddle, and went back to my old RXL.

Good luck on the build. I really need to update my build page with all the new stuff I’ve done to it.


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Madone 9 https://goo.gl/7UwZpV
Crockett https://goo.gl/f5PdCN
Madone 5 https://goo.gl/cMdyFo

Madone 4, Cobia. I own a lot of Treks.

Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

Nice job man, that looks great! I'll be sure to check out your thread when you update.

And thanks, I'll keep an eye out on eBay.

Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

Wheels. I was an early adopter when Hunt came on the scene three years ago and these 4 Season Disks are ready to go as soon as the axle adaptors arrive in the post. I dare say I'll lose a couple more grams with a thorough clean too!
Attachments
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Front Wheel.
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Rear Wheel.
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Freehub
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Rear axle: this is the quick release version and will be replaced to fit a 12x142 thru axle.
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These front wheel adaptors came with my hoops 3 years ago but unfortunately the standard is now 12mm rather than 15mm so they're no use. Weight for info.

Rodigan
Posts: 24
Joined: Thu Nov 09, 2017 12:57 am

by Rodigan

I ran 160/160mm rotors on my previous bike but with the move to flat mount hydraulics I had a choice: buy and fit an adaptor to run 160mm rear, or buy a smaller 140mm rotor. I went with the latter. Hopefully it's the right option. Again, these need a good clean up before use.
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FIJIGabe
Posts: 1600
Joined: Tue Sep 11, 2012 6:07 pm
Location: The Lone Star State

by FIJIGabe

At your size, you’ll be fine with a rear 140mm rotor. I’ve been toying with the idea of running the same, since Houston is relatively flat, and I would eliminate the spacers on my calipers.


Sent from my iPhone using Tapatalk
Madone 9 https://goo.gl/7UwZpV
Crockett https://goo.gl/f5PdCN
Madone 5 https://goo.gl/cMdyFo

Madone 4, Cobia. I own a lot of Treks.

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onemanpeloton
Posts: 102
Joined: Wed Jul 12, 2017 11:30 am
Location: Edinburgh, UK

by onemanpeloton

I love the crockett and have been considering one for a while now.

keep up the good work 8)
2017 Giant TCR Disc
2015 Giant TCX
2016 Cube Stereo 140

wpccrunner
in the industry
Posts: 391
Joined: Fri Dec 07, 2012 8:34 pm
Location: North Carolina

by wpccrunner

I just picked up the grey/fluoro 2019 corckett a few weeks ago. Swaped a few parts and now deciding on a whelset, before the season starts. I previously had a 2014 crockett canti

by Weenie


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