The Best XC full suspension MTB Boost frame S3
XC Full Suspension MTB Bike S3 is the latest cross-country bike frame from SUNREMO Cycling in 2021, which has perfect performance and features.
1. Full suspension carbon 29er mountain bike frameset, weighing 2280 grams.
2. The compact rear triangle has a shock-absorbing chain.
3. The rear shock absorber is 165*40mm
4. Three-point joint damping geometry.
5. Tapered head tube design.
“Trunnion mount: 8*30mm/54*M10 screw or 54*30mm.”
As long as you fit a trunnion mount shock you shouldn’t need any other hardware.
The Features Of XC Full Suspension MTB Bike S3
| Material | 100% full toray carbon fiber |
| Frame Model | Cross Country Bike Boost |
| Weave | UD Matt/Painting |
| Available Size | S/M/L/XL |
| Design Wheel/Tire Size | 27.5″*2.8″ or 29″*2.35″ |
| Travel | 100mm |
| Rear Rock travel | 165(length)*40mm(travel) |
| Headset-Upper | 1-1/8″ |
| Headset-Lower | 1-1/2″ |
| Seatpost | 31.6mm |
| Max chainring: | 36T |
| Bottom Bracket | BSA |
| Rear Spacing | 148 x 12mm |
| Bottle Mounts | 1 per frame |
| Disc front and rear | 160-180mm |
| Frame Weight | 2280+-20g |
| maximum insert length of the seatpost | 150mm 180mm 230mm 280mm |
| Size | S(52cm), M(54cm), L(56cm), XL(58cm) |
When we choose a cross-country (XC) mountain bike, stiffness, strength and comfort are the factors we need to consider. Obviously, if you need to ride downhill or all-mountainously, a full suspension XC mountain bike is more suitable for you than a hardtail bike.
The fact is that buying a high-end full suspension xc mountain bike is not cheap. If you are an experienced racer, you can assemble a full suspension xc mountain bike by yourself. I suggest you buy a full suspension carbon fiber mountain bike frame and wheels separately, which It will greatly reduce your cost and be able to feel fun because he will be like your child.
We all know that designing and riding a full-suspension mountain bike frame is not easy, especially for novices who are downhill. Safety is always our top priority, and it is also our basic rule for constructing each framework. This year, we will update the MTB frame to a new level. With the mature technology of Toray T800 + T1000 carbon fiber, we can create a stronger and stronger frame.
This complete suspended MTB frame is not light, weighing 2280 grams, but you will see a lot of safety details on this frame!
| Color | Turquoise |
|---|---|
| Size | L, M, S, XL |
Frequently Asked Questions
1.Do you provide OEM manufacturing services for private brands?
Yes. Sunremo has over 20 years of experience in OEM manufacturing, delivering premium-quality customized bicycle frames for global brands. From material selection to final quality inspection, every step follows strict manufacturing standards to ensure consistency, reliability, and long-term performance.
2.Can you develop a custom frame design exclusively for our brand?
Absolutely. We offer both OEM and ODM solutions. Whether you already have drawings or need full product development from concept, our engineering team supports geometry design, layup optimization, prototyping, testing, and mass production — ensuring your product stands out in both performance and branding.
3.Do you work with small or emerging brands?
Yes. We partner with brands of all sizes, from startups to established international companies. Our flexible production system allows scalable order quantities while maintaining the same quality standards and technical support.
4.What is your minimum order quantity (MOQ)?
MOQ depends on the model and customization level.
Standard models: The standard MOQ is 100 pieces
Full custom ODM projects: discussed based on tooling and development scope
Please contact us for an accurate quotation.
5.Can you provide samples or prototypes before mass production?
Yes. We strongly recommend sample validation before bulk production.
Prototype lead time is usually 20–45 days, depending on complexity and testing requirements.
6.What quality standards and certifications do you follow?
Our frames are manufactured under strict quality management systems.
Products can be tested and certified according to ISO, EN, and UCI standards upon request, ensuring compliance with international safety and performance requirements.
7.What warranty do you offer?
Sunremo provides a 2–5 year structural warranty depending on the frame model and application. Detailed warranty terms are supplied with each project.
8.What payment methods do you accept?
We accept secure and flexible payment methods including T/T, L/C, D/P, D/A, PayPal, and bank transfer.
9.How long is production and delivery time?
Production time depends on order volume and customization level:
10.Why choose Sunremo as your manufacturing partner?
✅ Direct factory with stable production capacity
✅ Advanced carbon fiber manufacturing expertise
✅ Strict QC and traceability system
✅ Flexible OEM/ODM cooperation model
✅ Competitive pricing with premium quality
✅ Professional international communication support
































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