The MIXED Full Carbon Fiber 5D saddle is widely regarded as an exceptional value: extremely light (around 124–135g), full carbon, and comfortable for many riders, often replacing far more expensive saddles. However, its glued-on cover, occasional finish inconsistencies, and narrow, fit-sensitive shape mean it is not for everyone, and at least one reviewer found it delicate enough to snap under front-weighted pressure.
Pros
- Extremely light for the price: measured 124–126g and costs around $25–$30123
- Full carbon construction with visible carbon weave on the bottom plate and rails12
- Comfortable for many riders, including 2.5-hour rides and 100 miles, with a deep pressure-relief channel that keeps pressure off the perineum142
- Can replace more expensive saddles such as the Specialized Power Comp and Posedla Joyseat 22
- Very stiff with no flex in any direction1
- Modern short-nose geometry with a massive rise at the rear and good wing clearance for forward pelvic rotation51
- Solid construction with no flimsy or rattling parts; substantial feel in hand1
- Excellent value: saves almost 100g versus a non-carbon Selle Italia SLR Boost at about 25 cents per gram saved1
Cons
- Top cover is glued on, a cheaper construction method that can show messy bonding and scabby finish around the edges126
- Fit-sensitive and narrow: best for sitbone dimensions under 100mm; may not suit wide sit bones52
- One reviewer reported the shell snapped through the inside edge from bearing weight on the front (not from a crash); described as a little delicate5
- Padding is not as good as 3D-printed saddles5
- Manufacturing consistency may vary; some units are not perfectly symmetrical2
- Shipping from AliExpress takes about 2 weeks2
- Slightly firmer than some riders prefer4
Key Facts
- Measured weight: 124g (nikinik), 126g (Cyclists Hub), claimed 135g; claimed range 120–135g126
- Price: around $25–$30 (under £20 in the UK), roughly $45 in one clinic325
- Full carbon shell and rails; Toray T700 carbon with visible weave on bottom plate and rails21
- Available in 143mm and 155mm widths; short-nose design with a deep central pressure-relief channel21
- Top cover is glued to the shell (thin EVA pad, not 3D-printed lattice)21
- Uses oval rails, requiring an oval rail connector plate for mounting1
- Model numbers (5D, 6D, 7D, 8D) refer to different shapes and sizes, not quality tiers or a 5D printing process6
Sources
- 1nikinik2 sources
- 2Cyclists HubMixed 5D Saddle Review: Cheap, Lightweight, and Comfy - Cyclists Hub
- 3amacal1 on ChinertownDuring these latest sales I picked up a Mixed 5D carbon saddle for less than ...
- 4Crash217 on ChinertownPicked up the Mixed 5D saddle recently. I have about 100 miles on it this we...
- 5Road Cycling AcademyAre cheap AliExpress saddles as good as top-tier brands?
- 6Tom Bowers Cycling10 AliExpress Bike Upgrades Ranked by Cost Per Gram
Reviews & Ratings
18:22The reviewer ranks the mixed carbon 5D saddle third in a value-focused list, praising its extremely low weight and price while noting inconsistent finish quality. Despite cosmetic flaws, the saddle is found comfortable and durable enough for off-road use.
15:24The reviewer examines the MIXED Full Carbon Fiber 5D Ultra Pack Light Weight Bike Saddle, noting its low price and lightweight design but expressing concerns about the finish quality and durability.
15:04The MIXED Full Carbon Fiber 5D Ultra Pack Light Weight Bike Saddle 143mm 135g for Road MTB Mountain Bicycle Carbon Seats is not mentioned in this video.
20:13The reviewer provides a detailed analysis of the MIXED Full Carbon Fiber 5D Ultra Pack Light Weight Bike Saddle (referred to as the 'mixed fullcarbon 5D saddle' or 'mixed saddle'). They state it is substantially better than the previous saddles reviewed, with superior build quality, a more substantial feel, and a modern short-nose geometry. The top material is softer and grippier, and the carbon weave is visible on the bottom plate and rails, indicating a full carbon construction. It is very stiff with no flex. The reviewer found it comfortable on a 2.5-hour ride, praising its shape and the larger pressure relief channel. They note the saddle cover is still glued on, which is a cheaper construction method, but overall they are very positive. They rank it highly and explicitly recommend it as a great option.
The reviewer found the MIXED Full Carbon Fiber 5D saddle to be a surprisingly high-quality product that excels in weight, build quality, and price. They noted its solid construction, comfort during long rides, and exceptional weight savings compared to non-carbon alternatives.
07:42The reviewer discusses the MIXED 5D saddle as one of three AliExpress saddles they use in their clinic. They describe it as extremely light and specifically recommend it for people with incredibly narrow pelvises and sitbone dimensions under 100mm. The saddle features a very flexible carbon shell, a massive rise at the rear, and tremendous clearance on the wings, making it good for riders who rotate their pelvis forward. However, they note the padding is not as good as 3D printed alternatives and that it is a bit delicate, having snapped on the inside edge from bearing weight on the front.
The reviewer finds the Mixed 5D saddle to be a rare cheap part that performs well, being lightweight, having an effective pressure relief channel, and replacing more expensive saddles. However, it is fit-sensitive and has some build quality compromises.
During these latest sales I picked up a Mixed 5D carbon saddle for less than $25. I have to say, I'm quite impressed with it. It fits me a little more comfortably than the last Ryet I picked up (which was a big reason I bought it, because I was a little disappointed in that Ryet). I guess I now have an entire fleet of chinese carbon saddles. If I had to rank them for my personal comfort, this is my ranking: #1 - Ryet X6P (carbon / 3d printed top) [note: I love this saddle. It fits me perfectly and I feel almost no discomfort even after finishing a century] #2 - Mixed 5D (carbon / eva top) #3 - Ryet (idk Superflow?, maybe) (carbon / eva top) #4 - Ryet Aircode (carbon / 3d printed top) I should point out, I've ridden century rides in every single one of those saddles (except the Mixed 5D, since I just rode with it for the first time this weekend). My oldest, the original Ryet Aircode, is the funniest one to me, because I find it rather uncomfortable for short rides. After 10-20miles my butt is a little sore and I would wonder why I hadn't removed it from my bike yet. Then, after 20mi, it just stopped bothering me. Every. Single. Time. I've never experienced anything like that. Of course, I did eventually remove it, because those other ones start out more comfortable and stay more comfortable.
Picked up the Mixed 5D saddle recently. I have about 100 miles on it this week and I gotta say, this thing is awesome!
I don’t have any rides over 2 hours on it yet but I don’t see longer rides being a problem, although it is slightly firmer than I usually prefer, it’s shaped just about perfectly for my build and riding posture.
Where to Buy
MIXED Full Carbon Fiber 5D Ultra Pack Light Weight Bike Saddle 143mm 135g for Road MTB Mountain Bicycle Carbon Seats
MIXED Full Carbon Fiber 5D Ultra Pack Light Weight Bike Saddle 143mm 135g for Road MTB Mountain Bicycle Carbon Seats
MIXED Full Carbon Fiber 5D Ultra Pack Light Weight Bike Saddle 143mm 135g for Road MTB Mountain Bicycle Carbon Seats - AliExpress 18
Specifications
Attributes
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Used in Builds
LCR 018
LCR 018's Road LCR 18 with SRAM Force AXS, ProX C68DB wheels, and Continental GP5000 tires.
7,406.0g
€3,601
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