Santa Cruz Stigmata - trying to get under 8kg

[simbikotic]

Beginning a new build! FIrst gravel build for me. Wow, the frame is... sturdy.




Weights for all the small bits:




Using an S-Works SL stem, which ships with an expander plug that is a little lighter than the Cane creek one that came with the Stigmata frame:
Cane creek:

S-Works:


Talking of replacing parts, these thru axles have to go....



I honsetly could not attach these to the bike in good conscience, so sourcing replacements asap.

[simbikotic]

With Roval alpinist seatpost and S-Works SL stem. Still to cut fork.

[simbikotic]

Installing the Campag Ekar groupset. The frame uses full internal routing for mechanical and Campag only provide short housings, so making use of some nice yellow jagwire housing I had in the box.



Coming together:


Wheels are Farsports 36mm gravel rims on DT 240 hubs. Weight for these can be found on this other thread: viewtopic.php?f=4&t=167924&p=1720555#p1720555

Tyres are Specialized Pathfiner 42mm.

[simbikotic]

Complete build:


And the weight:


Oh my. I have some work to do.

[simbikotic]

Diet plan:

Okay 360g to lose. There's some easy early wins.

1. I have a roval terra handlebar on backorder (out of stock most places), which is 200g. Currently for the build I used an old alu FSA handlebar I had lying around 306g so -106g: 254g
2. I have a pair of tune mtb bottlecages on order at 14g each replacing the tacx ones (30g each) so -32g: 222g
3. The Pathfinder tyres are nice but so heavy at 540g each (!). If I went to Panaracer gravel king SKs (38mm) that would be 453 each. So -174g: 48g

Any ideas for that last 50g? I could cut the seatpost (there's a fair bit in there) go down to one spacer on the fork (stack is really high anyway). I have 75ml of sealant in each tyre - maybe I can get away with less (60ml)?

[DHG01]

Nice bike.
Perhaps the saddle? Looks like an Arionne with carbon rails. So loosing 50 grams is likely to reuiqre changing model.

[robbosmans]

Pedals, get some excustar titanium pedals, don’t get expedo’s they are crap

These are my favorites: https://www.dulight.fr/fr/pedales/1715- ... anium.html

[damitamit]

Nice build! I recently built up a green Stigmata as a road build with Rival AXS and Farsports Feder with Panaracer GK 32s. Came in at 8.3kg.

Which thru-axles did you use in the end? I see I can save 100g by replacing my stock ones with J&Ls.

[DHG01]

Pedals, get some excustar titanium pedals, don’t get expedo’s they are crap

These are my favorites: https://www.dulight.fr/fr/pedales/1715- ... anium.html

These looks good. I ve had good experience with Xpedo though.

[simbikotic]

Nice build! I recently built up a green Stigmata as a road build with Rival AXS and Farsports Feder with Panaracer GK 32s. Came in at 8.3kg.

Which thru-axles did you use in the end? I see I can save 100g by replacing my stock ones with J&Ls.

Thanks. I love the green color. I used Robert Axle Project Thru Axles: https://robertaxleproject.com/.

[simbikotic]

Pedals, get some excustar titanium pedals, don’t get expedo’s they are crap

These are my favorites: https://www.dulight.fr/fr/pedales/1715- ... anium.html

Nice! Those pedals look awesome. Thanks.

[visionset]

Ditch the rubber chainstay guard? Toying with that myself, put some helicopter tape on for now, but shouldn't be whacking stay with a clutch eh

[simbikotic]

Ditch the rubber chainstay guard? Toying with that myself, put some helicopter tape on for now, but shouldn't be whacking stay with a clutch eh

Right. Curious to know if anyone has weighed this part. Looking at it I would guess it could be as much as 100-200g - very chunky. I do ride down some pretty steep, rocky single-track, but I rarely (never?) hear chain slap. Lighter protection might be fine.

[simbikotic]

Well - I am still waiting for my carbon handlebars... But in the meantime I managed to get sub 8kg without them:




The changes were:
1. Tires Pathfinder pro 42 -> Gravelking SK 38
2. Bottlecages tacx -> tune mtb
3. Rotors Ekar -> Galfer

When my handlebar finally shows up that should save me another 100g for ~7.83kg. This seems like a good weight for a Stigmata based on other examples I have seen. But more tuning is certainly possible. E.g. Pedals as suggestes above. Maybe 7.7 is possible.

[rolfo]

Nice bike!

Is this a medium? And what is the saddle height? I'm looking how a 54cm will look for me