BMC Fourstroke 01 2024 Raw Frame

Discuss light weight issues concerning mountain bikes & parts.

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Rickyseecanzano
Posts: 4
Joined: Wed Mar 06, 2024 3:40 am

by Rickyseecanzano

Swapping frames from my 2022 fourstroke under a warranty claim, (BMC stepped up) So I'm obviously obsessed with the weight of the new build and the bike shop sent me this. I know this is a heavy frame becasue of the air tank in the downtube for the autodrop seatpost as well as the dual link APS suspension. Does it look like there is something inside the bottom bracket? It's killing me to know if this will be as light as my current 01. I am currently sitting at 23.8 pounds. Image[/img]
The shop is 3 hours away from my house so i can't just go there and weigh it myself. Is there a good current spreadsheet that someone has used that will compare to this bike?
Parts List
Ritchey WCS 15 degree riser carbon 750
original stem BMC
racer's edge grips
Slx brakes and levers
Slammed stem
DT swiss lockut 3 position
Deore 12 speed shifters
BMC dropper lever 2 position
BMC RAD Autodropper 80 mil seat post
Fox Factory float rear shock 190x45
Fox stepcast 32 performnce grip damper 2022 fork
Race face 170 mm Next SL carbon cranks
race face PF92 BB
Elite wheels Pro 33 carbon wheel set W/Sapim xray spokes and 32 ratchet EW hubs
Continental race king 2.2 F/R
XT 160/180 centerlocvk rotors
Stock pads
Crank Brothers Candy 3 W/ titanium spinles
N=1 Ultralight Carbon Fiber Nylon Bike Water Bottle Cage Holder-17 G
Sealant

HOPING FOR SUB 24
Attachments
Fourstroke 01 2024 raw.jpg

Rickyseecanzano
Posts: 4
Joined: Wed Mar 06, 2024 3:40 am

by Rickyseecanzano

The item inside the bottom bracket is a cable they were trying to run........

by Weenie


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Rickyseecanzano
Posts: 4
Joined: Wed Mar 06, 2024 3:40 am

by Rickyseecanzano

Here is what I am coming up with based on my research of all the parts going on and coming off my old 2022 Fourstroke 01
Frame 01 LARGE 2210
Shock Float factory 269
Fork stepcast 32 Performance Grip STEERER CUT SLAM 1405
Dropper RAD AUTO 453
Saddle Ryet Carbon 92
Bars Ritchey WCS Carbon 15 degree 180 190
Grips Racers edge 57
Stem BMC MSM01 160
Spacers 38
Headset BMC SUPPLIED 70
Top Cap 6.5
Brake levers SLX 117
Calipers SLX 2 POT 290
Pads STOCK 40
Shifter w/ cable and housings-cable DEORE 12 SPD 196
Dropper lever BMC 2 POS 41
Lockout DT SWISS 100
Rotors XT 230
Brake Cables 170
Rear derailleur XT LONG 285
Crankset W/ Ring RACE FACE NEXT SL 170 W/ 24T ALUMINUM RING 447
Bottom Bracket PF92 RF 69
Cassette XTR 369
Wheelset ELITE WHEELS PRO 33 1365
Tires CONTI RACE KING 1250
Sealant 100
Lock rings 21
Chain XTR 248
Pedals CANDY W/ TI SPINDLE 275
Bottle cage N+1 CARBON 25
Hanger 9
Shock Mount 60
Bolts 85
Wahoo Mount 7

TOTAL 23.69 Pounds :beerchug: :D

js
Posts: 1020
Joined: Tue Nov 18, 2008 9:57 pm
Location: Canada

by js

Nice job on the build list.

I appreciate this is the name of the site, but I've definitely found that my WW'ism is much stronger when I'm in build sheet mode then once I finish the build and actually start riding the bike. To that point, while I have a spreadsheet that tells me what my bike weighs, and I've weighed many of the parts on it for comparisons and choice-making, I don't think I've ever actually weighed my bike.

You've done a great job of getting the build under 24 with the parts you have. If the actual build comes out to 24.10, I wouldn't be too worried about it. But if you know that you're the type who will always have that number or the next number in mind, then your best option may be to swap that BMC to something else before it's built, as there's a full pound to save with most other top XC bikes right there.

abalonekale
Posts: 1
Joined: Tue Mar 12, 2024 8:53 am

by abalonekale

I believe that if you look hard enough, you will discover many places that are closer than that.
Ronald Riddlegeometry dash

Rickyseecanzano
Posts: 4
Joined: Wed Mar 06, 2024 3:40 am

by Rickyseecanzano

I've had the bike for a few weeks and have done some more tweaking/ upgrades. I picked up some XTR brakes and swapped the tires to Specialized. It now weighs 23.8 with pedals and sealant. I have to say the bike is dialed for me and I am enjoying the handling and suspension very much. I would describe it as planted. Quite an improvement from the previous Fourstroke. I've have several mild pedal strikes. That is my only concren. I still think it is worth the extra weight to have a real multi link rear end and the dropper. Only thing left now would be the fork. Also the cabling on the front is not ideal. I can't live without the 3 pos lockout and dropper though.
Attachments
FOURSTROKE LT DEE.jpg
4stroke river.jpg

forgottenOne
Posts: 19
Joined: Tue Apr 11, 2023 9:34 am

by forgottenOne

Looks good! But why did you install the rear shock with the remote part downward instead of upward?

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

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