Ibis RipmovsYT Jeffsy

Stop obsessing over travel numbers and start looking at how much effort you want to put into the trail. The Ibis Ripmo V3 and YT Jeffsy Mk III both occupy the 145-150mm sweet spot, but they offer vastly different rewards for your pedaling input and descending aggression.

Ibis Ripmo
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Overview

Ibis enters the ring as the premium incumbent with a third iteration of the bike that practically defined the modern 29er trail category. YT is the direct-sales disruptor that has matured from a rowdy value option into a refined trail companion. While the Ripmo V3 feels like a high-performance scalpel that rewards active, precise riding, the Jeffsy Mk III acts as a versatile wingman that masks mistakes with a surprisingly plush, isolated feel. Price remains a massive wedge in this comparison, as a top-tier YT Core 5 costs less than a mid-spec Ibis GX build. Ibis counters with engineering details like IGUS bushings backed by a lifetime warranty and the elite DW-link suspension platform. Conversely, YT focuses on delivering superior brakes and suspension dampers at every price point, ensuring their bikes are ready for aggressive riding out of the box. Both have adopted internal frame storage and sleek, straight-tube aesthetics, signaling a convergence in what riders expect from a modern one-bike quiver.

Ride and handling

The Ripmo V3 is a climbing phenom even by the high standards of its predecessors. The DW-link suspension feels energetic when grinding up technical singletrack, providing a hoverbike-like sensation over square-edged rocks. However, it is not just a winch; it is a bike that likes to be jumped and flicked. Some reviewers noted it feels torsionally softer than the older V2S, making it feel less like a mini-enduro bike and more like a high-strung trail ripper that prefers steering around obstacles rather than smashing through them. YT Jeffsy takes a different approach to trail chatter by remaining remarkably quiet and isolated. Testers found that it blends rocks into a soft, manageable hum, making it feel like it has more than its 145mm of rear travel. It is not a mindless plow, as the 437mm chainstays keep it agile enough for tight tree slaloms and quick direction changes. Efficiency is high on both, but they manifest it differently. The Ripmo demands you stay active, rewarding every pump and pedal stroke with immediate acceleration. The Jeffsy is more of a trusty mule on the climbs—stout and efficient due to its steep seat angle, but occasionally feeling businesslike or even vague unless you are pushing it hard. On the descents, the Jeffsy’s 65-degree head angle provides a safe feel, while the Ripmo’s 64.5-degree front end and balanced weight distribution help it carve effortlessly from one turn to the next.

Specifications

The value gap across these lineups is staggering. The Ibis Ripmo XTR build demands nearly $10,000, while YT’s flagship Core 5 delivers Fox Factory suspension and SRAM X0 Transmission for roughly $6,500. Even at the entry-level, the $2,999 YT Core 1 provides a RockShox Lyrik fork and DB8 brakes, whereas you must step up to the $5,199 Ibis Deore build to find a comparable Fox 36 fork. Ibis clearly expects riders to pay a premium for the frame's engineering and brand prestige. Braking is a consistent sore spot for Ibis on the spec sheet, as many reviewers complained that the 180mm rear rotors and lighter-duty brakes on mid-tier builds felt underpowered. YT consistently specs 200mm rotors and powerful Code RSC or Dominion A4 brakes. This heavy-duty stopping power gives the Jeffsy a distinct advantage when things get steep and frantic. In the wheels department, Ibis uses its own Blackbird Send alloy rims, which are exceptionally tough and wide at 35mm. YT opts for Crankbrothers Synthesis Enduro alloy wheels on many builds, which are specifically tuned with different spoke counts front-to-rear to balance compliance and stiffness. Both brands have wisely resisted the urge to spec overly stiff carbon wheels as standard on their mid-range builds, recognizing that alloy give helps these bikes track better in the rough.

RipmoJeffsy
FRAMESET
FrameIbis (frame model not specified in provided specs)YT frame (size S–XXL)
ForkFox Float 36, Factory Series, GRIP X2, 160mm, 29in, 15x110mmMarzocchi Bomber Z1 (29", 150mm, Rail 2.0 damper, 15x110mm, 44mm offset)
Rear shockFox Float X, Factory Series, 2-position adj. w/ EVOL, 230x60mmMarzocchi Bomber Air (210x55mm, sweep adjust, custom tune, 0.6 spacer)
GROUPSET
Shift leversShimano Deore M6100Shimano Deore SL-M6100-R (12-speed, Rapidfire Plus, 2-Way-Release)
Front derailleur
Rear derailleurShimano Deore M6100 SGSShimano Deore RD-M6100 (12-speed, Shadow+)
CassetteShimano Deore M6100, 12-speed, 10-51TShimano Deore CS-M6100 (12-speed, 10-51T, Hyperglide+)
ChainKMC X12Shimano 12-speed chain
CranksetShimano Deore M6120, 24mm spindleShimano FC-M512 (170mm, 32T)
Bottom bracketShimano MT501Shimano BB-MT501 (BSA, 24mm)
Front brakeShimano Deore M6120, 4-piston hydraulic discSRAM DB8 (Maxima Mineral Oil)
Rear brakeShimano Deore M6120, 4-piston hydraulic discSRAM DB8 (Maxima Mineral Oil)
WHEELSET
Front wheelBlackbird Send Alloy, 32h, Ibis Logo hubs (Front: Send I 29in)SunRingle SR329 Trail Comp (29", 30mm internal, 15x110mm, 6-bolt)
Rear wheelBlackbird Send Alloy, 32h, Ibis Logo hubs (Rear: Send II; S–M: 27.5in, XM–XL: 29in)SunRingle SR329 Trail Comp (29", 30mm internal, 12x148mm, 6-bolt, HG freehub)
Front tireMaxxis DHF, 29x2.5, EXO+Maxxis Minion DHF (29x2.50, EXO+ casing, 3C MaxxTerra, Tubeless Ready)
Rear tireMaxxis DHR II, EXO+ (S–M: 27.5x2.5; XM–XL: 29x2.5)Maxxis Minion DHR II (29x2.40, EXO+ casing, 3C MaxxTerra, Tubeless Ready)
COCKPIT
StemIbis 31.8mm (S–M: 40mm; L–XL: 50mm)YT Stem 35 (50mm, +/-0°, Black)
HandlebarsIbis Aluminum, 780mmYT Handlebar (780mm width, 30mm rise, 8° backsweep, 6° upsweep, Black)
SaddleWTB Silverado Fusion CrMo 142YT Saddle (YT Custom, 144mm width)
SeatpostKS Vantage dropper, 34.9mm (S: 110–140mm; M–XM: 140–170mm; L–XL: 180–210mm)YT Seatpost (31.6mm; 125mm (S) / 150mm (M) / 170mm (L) / 200mm (XL, XXL))
Grips/TapeLizard Skins Single ClampODI Elite Motion V2.1 (lock-on)

Geometry and fit comparison

Sizing is where these two diverge in philosophy. Ibis uses a unique sizing metric defined by top tube length rather than reach, which results in a massive 478mm reach for their XM size. Compared to the YT’s Large at 475mm, the Ibis feels like the bigger bike on paper, though testers found it rode shorter than the numbers suggested. If you are 5’10—, you might find yourself stuck between Ibis’s Medium and XM, whereas YT’s five-size range feels more traditional. The Ripmo's seat tube angles are size-specific, ranging from 76.5 to 77.5 degrees, which is steep but surpassed by the YT’s aggressive 77.9 to 78.6 degrees. This puts the Jeffsy rider in a very forward, powerful climbing position that keeps the front wheel glued to the ground on 20-percent ramps. Ibis counters with a size-proportional bottom bracket height; as the frames get bigger, the BB height rises to help prevent pedal strikes for taller riders with longer cranks. On the trail, the Jeffsy's 65-degree head tube angle is stable but can feel skittish to aggressive riders at terminal velocity. The Ripmo's 64.5-degree angle is slacker and paired with a longer wheelbase, providing a more composed platform in high-speed rock gardens. However, the Jeffsy's shorter wheelbase makes it the easier bike to maneuver for riders who spend their time in tight, janky woods.

vs
FIT GEORipmoJeffsy
Stack643627-16
Reach506475-31
Top tube655609-46
Headtube length125116-9
Standover height732
Seat tube length457435-22
HANDLINGRipmoJeffsy
Headtube angle64.565+0.5
Seat tube angle7777.9+0.9
BB height349343-6
BB drop2733+6
Trail
Offset
Front center
Wheelbase12861238-48
Chainstay length438437-1

Who each one is for

Ibis Ripmo

The Ripmo is for the rider who treats every climb like a race and every descent like a playground. If your local loops involve 2,000 feet of technical climbing followed by high-speed, flowy descents where you want to pop off every root and manual every roller, this is your bike. It is for the precision-oriented rider who values an energetic feel over a plow feel and isn't afraid to pay for premium pivots and bushings that won't creak after a season in the mud.

YT Jeffsy

The Jeffsy is for the rider who wants an unshakeable wingman on the trail and a lot more money left in their bank account. If you are a set-it-and-forget-it type of person who needs a bike to bridge the gap between local trail rides and the occasional weekend at a bike park, the Jeffsy’s isolated, mistake-erasing suspension is the better choice. It is the smart play for the rider who wants powerful brakes and top-tier suspension dampers without paying a boutique tax.

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