CeepoMamba-R Triathlon
The Mamba-R Triathlon is Ceepo's aero road frame sold and set up for short-course triathlon rather than a dedicated tri bike: it uses the same frame, fork and geometry chart as the road Mamba-R, with road seat angles of 74-76 degrees and a standard FSA SMR stem, and Ceepo pitches it at Super Sprint to Olympic distances. That makes it a fit for draft-legal racing, where a UCI-legal road bike is required, and Ceepo says it is UCI certified. The current version routes all cables through the stem and headset, clears 35 mm tyres and moves the rider forward with a reversible seatpost.
- From
- $2,100$2,100$2,100
- Builds
- 1
- Sizes
- 5
- Frame weight
- 1,120 g2.47 lb
Design sketch, generated from the manufacturer's photo
Our verdict
No overall score: there's no complete-bike price to rate
A light, UCI-certified aero road frameset that Ceepo sets up for sprint and Olympic-distance racing, with room for 35 mm tyres so it also works as a road or all-road bike. It is not a dedicated tri bike: road seat angles, no integrated storage and no aero figures published.
Scored Oct 2026
- + Easy to travel with and service
- − Little integrated hydration or storage
AI-drafted from the specs on this page and reviewed before publishing. Scores are relative to every bike in the catalog when they were given, so they drop as newer bikes and parts raise the bar.
- Aero
- 62/100
- Frame
- 78/100
- Hydration & storage
- 40/100
- Fit
- 65/100
- Practicality
- 85/100
Aero claims and front-end integration
Carbon grade, weight and warranty
Hydration and storage in the frame
Sizes and adjustment range
Travel, standard parts, servicing
Bike duel
Frame & platform
Frame & fork
- Frame material
- Carbon (Toray, Optimized Strength Modulus Carbon)
- Fork material
- Carbon (one-piece fork)
- Frame weight
- 1,120 g2.47 lb
- Fork weight
- 450 g15.9 oz
- Weight measured on
- Frame size M unpainted; fork with uncut 300 mm steerer, unpainted (Ceepo)
- Frame sizes
- XS, S, M, L, XL
- Colours
- Chromatic Aberration, Dazzling Black
- UCI frame approval
- Approved 16 Jul 2018 as 'MAMBA R' (frame and fork; the entry also names 'STINGER R'), road category, sizes XS-XL (5), code CEEP-MAMB-RD (UCI list version 2026.10.02); the list does not say whether this covers the current SMR-stem version
- UCI configuration
- Ceepo states the Mamba-R is UCI certified
Compatibility & standards
- Brake type
- Flat-mount disc
- Max rotor size
- 160 mm
- Wheel size
- 700c
- Max tire width
- 35 mm
- Bottom bracket standard
- BB386EVO
- Front axle
- 12x100 mm thru-axle (M12 x 1.5)
- Rear axle
- 12x142 mm thru-axle (M12 x 1.5)
- Drivetrain compatibility
- Shimano Di2 and mechanical, SRAM eTap AXS and mechanical, Campagnolo EPS and mechanical, Classified PowerShift, FSA K-Force WE
- Mechanical shifting possible
- Yes
- 1x compatible
- Yes
- Max chainring
- 54T
- Cable routing
- Fully internal through the FSA SMR stem and headset
Hydration & storage
- Integrated storage
- No
Fit & adjustability
- Seatpost type
- Reversible carbon Wide Range Seatpost
- Fit notes
- Road geometry (seat angle 74-76 degrees depending on size); the reversible seatpost moves the saddle forward for a tri position. 2x chainrings from 50/34 to 54/40, 1x from 34T to 54T. FSA SMR stem 80 mm (XS, S), 90 mm (M), 100 mm (L) or 110 mm (XL). The SMR system allows up to 25 mm of stem spacers, using two-piece spacers that can be fitted or removed without re-cabling.
Aerodynamics
- Manufacturer aero claims
- Truncated, tapered airfoil tubes, lowered seatstays, a one-piece fork that blends into the frame and hidden cables (no figures published).
- Tube profile
- Truncated airfoil tubes
Travel, maintenance & warranty
- Headset bearings
- FSA No.55R 1.5" ACR headset
- Proprietary parts
- Seatpost; otherwise off-the-shelf parts (FSA headset and SMR stem)
- Frame warranty
- 3 years from purchase on the frameset, original owner with dated proof of purchase
Photos
Design sketches
Builds & components
Highlighted rows differ between builds. Green marks the best value.
Mamba-R frameset | |
|---|---|
| Overview | |
| Price (MSRP) | $2,100$2,100$2,100 |
| Type | Frameset |
| Notes | Sold as a frameset kit (frame, fork, reversible seatpost, FSA SMR stem and headset, plus thru-axles, seat clamp and Di2 battery adaptor). The USD price is from the 'Mamba-R Frameset Kit' listing in Ceepo's own online shop (excluding VAT and duties); the same frameset is sold as the road Mamba-R. That listing names older colours (Glossy Blue, Hirro Fade, White, Chameleon, Pink) and a 30-53T chainring range, so confirm the current version with a dealer. |
| Cockpit | |
| Stem | FSA SMR |
| Stem length | 80 (XS, S), 90 (M), 100 (L), 110 (XL) |
| Headset | FSA No.55R 1.5 in ACR |
| Saddle & seatpost | |
| Seatpost | Ceepo Wide Range Seatpost (reversible) |
| Material | Carbon |
Mamba-R Triathlon price & value
Building up the Mamba-R frameset
Included: Headset, Seatpost, Stem.
Still to buy: Groupset, Crankset, Cassette, Chain, Brake calipers, Wheelset, Tires, Aerobar system, Saddle, Pedals.
Spare & upgrade parts from Ceepo
| Part | Part number | Price |
|---|---|---|
| Shimano Di2 battery holder | — | $15$15$15 |
| Shim adaptor for 1.5" lower bearingCeepo lists Stinger, Mamba, Viper and Katana as compatible and asks buyers to confirm by email. | — | $3$3$3 |
Ownership checklist
2 of 3 known checks pass, 4 not published by Ceepo. Why these checks
- ✕
Threaded bottom bracket
BB386EVO
- ?
UDH derailleur hanger
- ✓
Standard 12×142 mm rear axle
12x142 mm thru-axle (M12 x 1.5)
- ✓
Works with mechanical shifting
- ?
Fits third-party aerobars
- ?
Rear disc wheel compatible
- ?
Fit kept when packed
Mamba-R Triathlon geometry
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Stack | 493 mm19.4″ | 502 mm19.8″ | 528 mm20.8″ | 552 mm21.7″ | 582 mm22.9″ |
| Reach | 378 mm14.9″ | 385 mm15.2″ | 388 mm15.3″ | 391 mm15.4″ | 402 mm15.8″ |
| Seat angle min | 76° | 75° | 75.7° | 74.6° | 74° |
| Seat angle max | 76° | 75° | 75.7° | 74.6° | 74° |
| Head tube angle | 71.5° | 71.5° | 72° | 72° | 72.5° |
| Head tube length | 85 mm3.3″ | 95 mm3.7″ | 130 mm5.1″ | 145 mm5.7″ | 175 mm6.9″ |
| Effective top tube | 500 mm19.7″ | 520 mm20.5″ | 534.4 mm21″ | 555 mm21.9″ | 580 mm22.8″ |
| Seat tube length | 430 mm16.9″ | 460 mm18.1″ | 490 mm19.3″ | 520 mm20.5″ | 550 mm21.7″ |
| Chainstay | 408 mm16.1″ | 408 mm16.1″ | 408 mm16.1″ | 408 mm16.1″ | 408 mm16.1″ |
| Wheelbase | 965.4 mm38″ | 977.2 mm38.5″ | 975.8 mm38.4″ | — | 1,010.4 mm39.8″ |
| BB drop | 70 mm2.8″ | 70 mm2.8″ | 70 mm2.8″ | 70 mm2.8″ | 70 mm2.8″ |
| Fork offset | 43 mm1.7″ | 43 mm1.7″ | 43 mm1.7″ | 43 mm1.7″ | 43 mm1.7″ |
| Front centre | 567.9 mm22.4″ | 579.7 mm22.8″ | 586.2 mm23.1″ | 597.3 mm23.5″ | 612.6 mm24.1″ |
| Standover | 708 mm27.9″ | 738 mm29.1″ | 767 mm30.2″ | 795 mm31.3″ | 826 mm32.5″ |
| Wheel size | 700c | 700c | 700c | 700c | 700c |
| Stem length | 80 mm3.1″ | 80 mm3.1″ | 90 mm3.5″ | 100 mm3.9″ | 110 mm4.3″ |
Side view & pad range
Drawn to scale (how to read it).
How the geometry rides
The Mamba-R Triathlon in size M against the middle size of 42 other bikes: tendencies from geometry, not a ride review (how to read this).
- Wheelbase975.8 mm38.4″
shortestlonger than 10% of 42 bikeslongest
Short wheelbase: tends to feel more agile in corners and less planted on long straights.
- Front centre586.2 mm23.1″
shortestlonger than 45% of 29 bikeslongest
- Chainstay408 mm16.1″
shortestlonger than 65% of 53 bikeslongest
Good to know
Design
Ceepo says the Mamba-R borrows the aero features of its Stinger road bike and lessons from its triathlon frames: integrated cable paths, truncated and tapered airfoil tubes and low seatstays.
SourceFit
Ceepo's geometry chart lists wheelbases of 965.4 mm (XS), 977.2 mm (S), 975.8 mm (M), 955 mm (L) and 1010.4 mm (XL). The L figure does not fit the other sizes and is probably a typo, so it is left out here.
SourceIntegration
The current version routes brake hoses and shift cables through the FSA SMR stem and headset; a single front brake hose passes through the fork steerer without a connector.
SourceRacing
Ceepo positions the triathlon set-up for Super Sprint, Sprint and Olympic distances and says the Mamba-R was raced at the Tokyo Olympics (by Oscar Coggins), won several U23 Asian Triathlon Championships and the overall at the Tridash Bangkok series.
SourceHistory
Ceepo publishes a separate sizing chart for Mamba-R models of 2022 and before, and calls the current frame its next-generation version with the FSA SMR stem cable solution.
SourceVersions
Ceepo markets one Mamba-R frameset for road, triathlon and all-road use: the reversible seatpost switches between road and tri positions, and the 35 mm tyre clearance opens up mixed terrain. The road version is on Ceepo's separate Mamba-R page.
Source
Mamba-R Triathlon FAQ
Is the Ceepo Mamba-R Triathlon UCI legal?+
Yes. The Ceepo Mamba-R Triathlon is UCI legal, so it can be raced in draft-illegal triathlon as well as UCI time trials.
How much does the Ceepo Mamba-R Triathlon cost?+
Manufacturer prices (MSRP): $2,100 across 1 listed build: Mamba-R frameset.
How much does the Ceepo Mamba-R Triathlon weigh?+
The frame weighs 1,120 g (2.47 lb) (Frame size M unpainted; fork with uncut 300 mm steerer, unpainted (Ceepo)).
What sizes does the Ceepo Mamba-R Triathlon come in?+
5 sizes: XS, S, M, L and XL.
What seat angle does the Ceepo Mamba-R Triathlon have?+
The effective seat tube angle can be set between 74° and 76°.
Does the Ceepo Mamba-R Triathlon have integrated storage?+
No integrated frame storage.
What is the tire clearance of the Ceepo Mamba-R Triathlon?+
Up to 35 mm tires on 700c wheels.
Which groupsets are compatible with the Ceepo Mamba-R Triathlon?+
Drivetrain compatibility: Shimano Di2 and mechanical, SRAM eTap AXS and mechanical, Campagnolo EPS and mechanical, Classified PowerShift, FSA K-Force WE. Mechanical shifting can be fitted. 1x drivetrains are supported. The largest chainring that fits is 54T. Bottom bracket: BB386EVO.
What warranty does the Ceepo Mamba-R Triathlon frame have?+
3 years from purchase on the frameset, original owner with dated proof of purchase
Is the Ceepo Mamba-R Triathlon aerodynamic?+
Truncated, tapered airfoil tubes, lowered seatstays, a one-piece fork that blends into the frame and hidden cables (no figures published).
Sources
- https://www.ceepobike.com/mamba-r-triathlon
- https://www.ceepobike.com/mamba-r
- https://www.ceepobike.com/_files/ugd/93388b_08755565a98e42b0817779157e3856a3.pdf
- https://www.ceepobike.com/_files/ugd/93388b_3601661d335f42259a8f24e1ed29bdc2.pdf
- https://www.ceepobike.com/_files/ugd/d77e4c_71336ad1331f4142a69e61c587b74d22.pdf
- https://www.ceepobike.com/product-page/mamba-r-frameset-kit
- https://www.ceepobike.com/warranty
- https://www.ceepobike.com/product-page/shimano-battery-holder
- https://www.ceepobike.com/product-page/shim-adaptor-for-1-5-lower-bearing
Ceepo Mamba-R Triathlon data last updated · How the data is checked ·