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4130 Trail - Mountain Bike - Frame Set - West Sunset
Trail-Ready From the Core
current price, $396.00
The 4130 Trail Frame & Fork Set is the perfect foundation for your next hardtail shredder. Made from double-butted 4130 Chromoly steel, this frame is built to take a beating while delivering a smooth, lively ride feel. With progressive trail geometry, UDH compatibility, and clearance for big rubber, itβs ready for anything from techy singletrack to loaded bikepacking missions.
Quick Features:
- Progressive Trail Geometry: A slack 65Β° head angle, low-slung top tube, and long front-center keep things stable when the trail gets rowdy while maintaining playful agility in the corners.
- Universal Derailleur Hanger (UDH) Compatibility: Future-proofed for modern drivetrain tech and easier maintenance, because you donβt need to be stressing parts availability.
- Double-Butted 4130 Chromoly Steel Frame: Tougher than aluminum and smoother than carbon, our double-butted 4130 Chromoly frame absorbs trail chatter and takes a beating without flinching.
- Internal Dropper Routing: With a 31.6mm seat tube and internal cable routing, upgrading to a dropper post is hassle-free.
- Threaded Bottom Bracket (73mm BSA): Reliable, creak-free, and easy to service.
- More Mounting Points: Triple bottle cage mounts on the downtube β because adventure doesnβt come with limits.
- RockShox Psylo Silver RC β 130mm Travel, 35mm Stanchions: The RockShox Psylo Silver RC features 35mm steel upper tubes for enhanced steering precision and stiffness when blasting technical descents. The Motion Control damper and Solo Air spring keep things plush, while premium bushings reduce friction for a buttery-smooth ride over rough terrain.
Build and Customize
FRAME SIZE:
- XS/S: 5'1" to 5β5"
- S/M: 5'5" to 5'10"
- M/L: 5'10" to 6'1"
- XL: 6'1" to 6'5"
Also Included:
- Headset
- Thru-AxlesΒ Front & Rear
- Universal Derailleur Hanger
- Cable Guides
- Quick Release Seatpost Clamp
MAX TIRE CLEARANCE:
- Frame: 29β Wheels: Up to 2.6β / 27.5β Wheels: Up To 3.0β
- Fork: 29" Wheels: Up to 2.6" / 27.5' Wheels: N/A
RETURNS & EXCHANGES:
You have 30 days from receiving your order to request a return or exchange. Return shipping fees may apply. Some items are final sale / non-returnable.
Add the Package Protection Plan at checkout for free return labels, free exchanges, extended 60-day window, and coverage for loss/theft/damage in transit.
View full Return Policy .
SHIPPING:
Most in-stock items ship within 1 business day. Youβll receive tracking as soon as it goes out.
Learn more: Shipping Policy.
ASSEMBLY:
Complete bikes ship ~90% assembled, but final setup and tuning should be done by a professional mechanic. This keeps you safe and helps validate your warranty.
WARRANTY: Warranty activates when you submit proof of professional assembly.
- 5-year warranty on all bicycle frames
- 1-year warranty on non-consumable parts
- 2-year warranty on Essor USA products
Details: Warranty Policy.
SIZE CHARTS & SPECS:
Need fit or tech info? Find detailed geometry charts, size guides, and build specs here:
Size Charts & Specs.
SUPPORT:
Have a question or an issue with your order (damaged in shipping, missing items, etc.)?
Reach out and our team will take care of you:
Contact Us or email info@statebicycle.com.


