Ibis RipmovsSanta Cruz Bronson
“If in doubt, take a Bronson out,” states Santa Cruz, suggesting their Bronson V4 is the do-it-all machine ready for anything. Ibis, with their Ripmo V3, offers a similar promise: a versatile "all-mountain" bike that is hands down one of the most fun and capable bikes Ibis has released, notes Awesome MTB. Both bikes stake a strong claim as a singular solution for diverse terrain, yet they arrive at this goal through notably different design philosophies.
Overview
The Ibis Ripmo V3 and Santa Cruz Bronson V4 both aim to be your single-track weapon, capable of tackling nearly any trail, but they approach this versatility from distinct starting points. The Ripmo V3, with 150mm of rear travel and a 160mm fork, is primarily a full 29er that offers mixed-wheel compatibility via a flip chip. Its lineage includes EWS wins, but the V3 marks a return to a more "all-mountain" focus, refining its acclaimed DW-Link suspension for both climbing efficiency and playful descending. The Santa Cruz Bronson V4, conversely, is a dedicated mullet bike, featuring a 29-inch front wheel and a 27.5-inch rear, also with 150mm of rear travel and a 160mm fork. This mixed-wheel setup is central to its identity, positioning it as a "Goldilocks" bike that aims to blend the flickable fun of Santa Cruz's 5010 with the high-speed composure of the Megatower. While the Ripmo gives riders the *option* to mullet, the Bronson commits fully to it, shaping its entire geometry and kinematics around this specific wheel configuration from the outset. This fundamental difference in wheel philosophy underpins much of their on-trail character.
Ride and handling
The Ripmo V3's ride quality is consistently praised for its energetic climbing and lively descending. Reviewers often point to its "pep in its step" on ascents, with the DW-Link suspension delivering exceptional traction and resisting unwanted movement, leading to a "hoverbike" sensation over technical terrain. On the flip side, the Bronson V4, while also an efficient climber thanks to its VPP system, offers a different flavor. Vital MTB humorously suggested you could remove the climb switch and still be happy, highlighting its impressive anti-squat. Descending, the Ripmo offers a distinctly playful and poppy character. It actively encourages you to jump and unweight, making it a "total fun machine" on flowing trails and eager to be "flicked" through corners. Its suspension is supportive, preventing excessive bottom-out, but isn't a
Specifications
The selected builds for comparison, the Ibis Ripmo XTR and Santa Cruz Bronson X0 AXS RSV, represent premium, near top-tier offerings from both brands. The Ripmo commits to a full Shimano XTR M9220 Di2 drivetrain, offering crisp and dependable electronic shifting with 10-51T cassette gearing. Its braking is also all-Shimano XTR M9220 4-piston, featuring 203mm IceTech rotors front and rear. This robust braking setup is a clear advantage over the Bronson. The Bronson's X0 AXS RSV build features a SRAM X0 Eagle AXS T-Type drivetrain with a 10-52T cassette, offering a slightly wider gear range. For braking, it uses SRAM Maven Silver Stealth 4-piston brakes with a 200mm front rotor and a 180mm rear rotor. The smaller 180mm rear rotor on the Bronson is a consistent point of critique across reviews, with many recommending an immediate upgrade to 200mm for improved heat dissipation and consistent performance, especially for heavier riders or on sustained descents. The Ripmo's larger, matched rotors provide superior stopping power out of the box. Looking at wheelsets, both bikes feature premium carbon rims from their in-house brands laced to Industry Nine hubs. The Ripmo uses Ibis S35 Carbon rims on Industry Nine Hydra CL hubs, known for their rapid engagement. The Bronson sports Reserve 30|HD Carbon rims on Industry Nine 1/1 hubs. While both are high-quality, the Ripmo's choice of Hydra hubs is a slight edge in engagement speed. In terms of cockpits, the Ripmo's Blackbird 35 Carbon Riser Bar (800mm with adjustable width) received mixed reviews, with some finding its ergonomics a bit strange. The Bronson's Santa Cruz 35 Carbon Bar (800mm) received more positive feedback for its compliance and comfortable shape, particularly from reviewers noting its role in damping trail chatter. Both bikes use excellent dropper posts: the Ripmo with a BikeYoke Revive Max and the Bronson with a OneUp Dropper Post. A common critique for both, particularly on their EXO+ or EXO casing Maxxis tires, is that aggressive riders may need to upgrade to tougher DoubleDown casings for enhanced durability against punctures, especially on the rear.
| Ripmo | Bronson | |
|---|---|---|
| FRAMESET | ||
| Frame | Ibis (frame model not specified in provided specs) | Santa Cruz Bronson Carbon C frame (Bronson R build), 150mm travel, VPP suspension |
| Fork | Fox Float 36, Factory Series, GRIP X2, 160mm, 29in, 15x110mm | RockShox Lyrik Base, 160mm, 44mm offset |
| Rear shock | Fox Float X, Factory Series, 2-position adj. w/ EVOL, 230x60mm | FOX Float Rhythm, 230x57.5 (57.5mm stroke) |
| GROUPSET | ||
| Shift levers | Shimano Deore M6100 | SRAM NX Eagle, 12-speed (right) |
| Front derailleur | — | — |
| Rear derailleur | Shimano Deore M6100 SGS | SRAM NX Eagle, 12-speed |
| Cassette | Shimano Deore M6100, 12-speed, 10-51T | SRAM PG1230, 12-speed, 11-50T |
| Chain | KMC X12 | SRAM NX Eagle, 12-speed |
| Crankset | Shimano Deore M6120, 24mm spindle | SRAM Descendant Eagle 148 DUB, 32T |
| Bottom bracket | Shimano MT501 | SRAM DUB 68/73mm Threaded BB |
| Front brake | Shimano Deore M6120, 4-piston hydraulic disc | SRAM DB8 Stealth |
| Rear brake | Shimano Deore M6120, 4-piston hydraulic disc | SRAM DB8 Stealth |
| WHEELSET | ||
| Front wheel | Blackbird Send Alloy, 32h, Ibis Logo hubs (Front: Send I 29in) | Reserve 30|TR AL -or- Raceface AR30; SRAM MTH 716, 15x110, 6-bolt, 32h |
| Rear wheel | Blackbird Send Alloy, 32h, Ibis Logo hubs (Rear: Send II; S–M: 27.5in, XM–XL: 29in) | Reserve 30|TR AL -or- Raceface AR30; SRAM MTH 746, 12x148, HG, 6-bolt, 32h |
| Front tire | Maxxis DHF, 29x2.5, EXO+ | Maxxis Assegai 29x2.5, 3C MaxxGrip, EXO+ |
| Rear tire | Maxxis DHR II, EXO+ (S–M: 27.5x2.5; XM–XL: 29x2.5) | Maxxis Minion DHR II 27.5x2.4, 3C MaxxTerra, EXO+ |
| COCKPIT | ||
| Stem | Ibis 31.8mm (S–M: 40mm; L–XL: 50mm) | OneUp Stem, 42mm -or- Burgtec Enduro Stem, 42mm |
| Handlebars | Ibis Aluminum, 780mm | Burgtec Alloy Bar |
| Saddle | WTB Silverado Fusion CrMo 142 | Fizik Monte -or- SDG Bel-Air V3, Steel |
| Seatpost | KS Vantage dropper, 34.9mm (S: 110–140mm; M–XM: 140–170mm; L–XL: 180–210mm) | SDG Tellis Dropper, 31.6 |
| Grips/Tape | Lizard Skins Single Clamp | Santa Cruz Bicycles House Grips |
Geometry and fit comparison
The geometry of the Ibis Ripmo V3 and Santa Cruz Bronson V4, when comparing the selected XM Ripmo and Large Bronson, reveals a divergence in their approach to rider fit and trail dynamics. The Ripmo XM offers a 478mm reach and a 633mm stack. The Bronson Large counters with a slightly longer 480mm reach and a noticeably taller 641mm stack. This translates to the Bronson feeling inherently longer and more upright, while the Ripmo presents a slightly more compact and lower-slung front end. The Ripmo's sizing, in particular, caused some confusion among reviewers, with some noting that the on-paper numbers didn't always reflect the perceived ride feel, often recommending a demo ride to ensure optimal fit. Moving to handling geometry, the Bronson leans into stability with a slacker 64.2-degree head tube angle, a steeper 78.2-degree seat tube angle, longer 442mm chainstays, and a stretched 1267mm wheelbase. This geometry package is designed for confident high-speed composure, making it feel more "planted" on rough descents. The steeper seat tube angle positions the rider more effectively over the bottom bracket for climbing efficiency. Conversely, the Ripmo's 64.5-degree head tube angle, 76.5-degree seat tube angle, shorter 436mm chainstays, and shorter 1249mm wheelbase contribute to its more nimble and playful character, allowing for quicker direction changes and an easier time unweighting the front wheel. For rider suitability, the Ripmo's geometry tends to favor those who appreciate a lively, responsive bike that's easy to manual and pop off features. Its slightly shorter feel, combined with a relatively slack (for an Ibis) head angle, offers a balance of stability and agility, though some taller riders might find the front end a bit low without cockpit adjustments. The Bronson's geometry, with its higher stack and longer wheelbase, is well-suited for riders prioritizing high-speed stability and a commanding, upright descending position, especially given its dedicated mullet setup. However, the pronounced high front-end feel on the Bronson was a recurring comment, with some riders needing to lower their bars or slide their saddles forward to find a comfortable and effective cornering position, particularly on flatter terrain.
| FIT GEO | Ripmo | Bronson | |
|---|---|---|---|
| Stack | 643 | 641 | -2 |
| Reach | 506 | 480 | -26 |
| Top tube | 655 | 614 | -41 |
| Headtube length | 125 | 130 | +5 |
| Standover height | — | 725 | — |
| Seat tube length | 457 | 430 | -27 |
| HANDLING | Ripmo | Bronson | |
|---|---|---|---|
| Headtube angle | 64.5 | 64.2 | -0.3 |
| Seat tube angle | 77 | 78.2 | +1.2 |
| BB height | 349 | 344 | -5 |
| BB drop | 27 | 29 | +2 |
| Trail | — | — | — |
| Offset | — | — | — |
| Front center | — | 825 | — |
| Wheelbase | 1286 | 1267 | -19 |
| Chainstay length | 438 | 442 | +4 |
Who each one is for
Ibis Ripmo
The Ibis Ripmo V3 is for the rider who values an exceptionally balanced and energetic trail bike that shines across a wide array of terrain. If you regularly embark on long, pedaly rides but still want a bike that injects "pep in its step" on technical climbs, this is a strong contender. It's ideal for those who enjoy an active, playful riding style—someone who sees every trail feature as a potential jump or an opportunity to drift through a corner. While capable on steep, rough descents, it rewards finesse and rider input more than simply plowing through. If you appreciate thoughtful frame details, a quiet ride, and a bike that can happily morph between a 29er and a mullet, the Ripmo V3 delivers a refined, confidence-inspiring experience.
Santa Cruz Bronson
The Santa Cruz Bronson V4 appeals most to the rider seeking a distinctive, aggressive all-rounder with a "hooligan nature" that thrives on creative line choices. This bike is tailor-made for those who want the best of mixed-wheel advantages: the traction and rollover of a 29-inch front wheel combined with the nimble, flickable feel of a 27.5-inch rear. If you love pumping through flow trails, hitting jumps with significant pop, and aggressively cornering, the Bronson will put a "huge smile on your face." It's also a superb choice for riders who demand premium frame quality, industry-leading warranties, and don't mind a higher price tag for a bike that rewards an active, confident riding style on varied trails, but might reach its limits on the most brutal, high-speed DH terrain.
