And if only this were a year or two in the future!  This is exactly what I'll be needing for a custom titanium frame that I am going to purchase soon, but I won't have the funds yet to buy this steal of a deal.  Unless you wanted to receive a down payment and get the rest at a later date hahaha

Hey everyone,

I’m currently mapping out the geometry and spec sheet for a custom titanium 1x all-road/gravel frame that I plan to order from a Chinese builder (likely XACD) next year. Before I officially start the back-and-forth email process and get into the actual CAD drawing stages, I want to make sure my numbers are completely dialed and that I won't run into any classic clearance or manufacturing pitfalls.

The plan is a fast, clean, integrated 1x build around a traditional, level top tube silhouette.

My Fit & Main Component Specifications:
Saddle Height: 787mm (BB center to top of saddle)

Saddle Setback: -102mm

Handlebar Reach: 585mm

Cockpit: Integrated carbon handlebar/stem (100mm length / 420mm width) with full internal routing through an IS52 headset system.

Drivetrain: 1x setup running an AliX Pass Quest 48T 110BCD chainring on a Magene P505 spider power meter (24mm spindle).

Wheels/Tires: Elitewheels Gravel Pro carbon wheelset (24mm internal width) running 700x40mm tubeless tires.

Intended Frame Geometry:
Seat Tube Length: 600mm (Center-to-Top)

Seat Tube Angle (STA): 72.5°

Seatpost: 27.2mm diameter carbon seatpost with a 20-25mm setback (Elita One Master Series).

Why I'm Choosing This Layout:
With a 600mm seat tube, I'll have roughly 142mm of exposed seatpost to the saddle rails. I want to keep the classic, traditional look of a level top tube, and ~140mm of exposure gives me exactly enough exposed 27.2mm carbon shaft to flex and damp high-frequency road vibrations. Because my fit requires a deep -102mm setback, combining the slack 72.5° STA with a 20-25mm offset post keeps the saddle rails safely centered in the clamp.

Questions for the Chinertown Custom Ti Veterans:
The 48T Chainring vs. 40mm Tire Dilemma: A 48T ring is massive for a gravel frame. On 24mm internal rims, 40mm tires are going to stretch out closer to 41-42mm. For those who have done custom Ti builds with Chinese factories, what specific chainstay yoke design or dimpling instructions should I write into the order notes to ensure the chainring doesn't chew into the titanium stay while maintaining tire clearance?

IS52 Integrated Head Tube Details: I want fully internal cable routing. When the factory draws up the integrated IS52 head tube, what should I double-check regarding the internal bearing seats, transition spacers, and turning radius limits to make sure it plays nice with standard integrated carbon bars?

Front-Center & Stability: Given the slack 72.5° STA and my rearward weight bias, how should I approach the front triangle geometry (head tube angle/fork rake) to keep the bike tracking straight and stable on high-speed loose gravel descents?

I’d love to hear from anyone who has gone through the custom titanium blueprint process here. Let me know if you see any red flags or things I should change before I open up the conversation with the factory.

Thanks,
Mike

How about commuting clothes?  So like gravel type things or MTB like a poster previously inquired of...

Yes, I'm in the same situation you are.  I haven't received anything.  Everything has been stuck in customs.

Any recommended clones of the 3d printed SLR Boost? I do like a nice big cutout.

Check this one out:

elitaone SLR 3D Printed Saddle Carbon 145x248mm Road Bike Ultralight Hollow Comfortable Breathable Cycling Seat Part
https://www.aliexpress.us/item/3256808464419645.html?spm=a2g0o.cart.0.0.59a138daxW5Kmg&mp=1&pdp_npi=5%40dis%21USD%21USD%20148.33%21USD%2068.23%21%21USD%2068.23%21%21%21%40210330dd17593561130751313e99ae%2112000046097530954%21ct%21US%216115268129%21%211%210&tblci=GiATyNuZ97LzOk3RuLsw9eQGuPfXmc2EjXkVosAfqTlLCSDA9m4or8CawNHT-JwTMOTOPQ&_gl=1

Selle Italia SLR Boost 3D TI 316 Superflow
https://www.selleitalia.com/slr-boost-3d-ti-316-superflow/?_gl=1

Check out the similarities in the pictures....

I'm not sure what your budget is, but I'm in your same boat and I just bought a 10 year old steel frame for $50 (was actually listed for $150) from my local classifieds. The bike came with all of the old components, mid-level 10-speed sram apex double tap with 50-34 double chainring, 10-32 cassette and crappy wheels.  My plan is to ditch the wheels and eventually switch everything out for a 1 x rim e-group (from Wheel Top or Magene).  If you are just looking for a frame, you could probably find something really cheap in the used market that you would just need to clean up.

New one called ESLNF:

https://www.aliexpress.us/item/3256808773887916.html?spm=a2g0o.cart.0.0.208b38dalgMbTo&mp=1&pdp_npi=5%40dis%21USD%21USD%2059.87%21USD%2022.15%21%21USD%2021.29%21%21%21%40210337bc17478570219472869e1670%2112000047378683071%21ct%21US%216115268129%21%211%210&tblci=GiATyNuZ97LzOk3RuLsw9eQGuPfXmc2EjXkVosAfqTlLCSDA9m4or8CawNHT-JwTMOTOPQ&_gl=1*1sw7rvn*_gcl_aw*R0NMLjE3NDc0MjgzOTAuQ2owS0NRand4SnZCQmhEdUFSSXNBR1VnTmZpWE83ekJ6UDFQYUJFLV9oc3VxOG5hM18zcnktbUhJQlFoMmxsZlVUcmpqVnlzeVlqN3hfc2FBbXVERUFMd193Y0I.*_gcl_dc*R0NMLjE3NDc0MjgzOTAuQ2owS0NRand4SnZCQmhEdUFSSXNBR1VnTmZpWE83ekJ6UDFQYUJFLV9oc3VxOG5hM18zcnktbUhJQlFoMmxsZlVUcmpqVnlzeVlqN3hfc2FBbXVERUFMd193Y0I.*_gcl_au*MjM1OTg4NzQxLjE3NDc4NDc0MjA.*_ga*MzU3MjQ0MTE2MTY0MDM3LjE3MjQxNzEzMTQyMDE.*_ga_VED1YSGNC7*czE3NDc4NTY4MDkkbzE3MCRnMSR0MTc0Nzg1NzE5NSRqNjAkbDAkaDAkZDl5VFRURlFUT3p4akVNWXRGOGtyNWF5Z1ZhUzJQYmNZMWc.&gatewayAdapt=glo2usa

Thoughts?