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Official product image of the RockShox BoXXer Ultimate
Raceready Tech Desk
Updated: April 3, 2026
Article

DOWNHILLINNOVATIONS.IN CONTEXT.

No full-screen product show. Just a compact report on what is actually interesting right now at Rimpact, FOX, and RockShox, and what those products change on trail.

What this page is about

This page should not feel like a storefront. It should feel like context. That is why ride feel, platform logic, tradeoffs, and rider fit matter more here than visual spectacle.

Official product image of the Rimpact TMD
01.1RIMPACTCurrent front-end focus
Vibration control, drivetrain quiet, and inserts

TMD

The TMD sits inside the steerer tube and is meant to calm vibration and sharp energy spikes before they reach the riders hands and forearms.

What it does

Rimpact now frames the system more as an energy-smoothing mass-damper approach than as a fixed-frequency trick. It installs in the steerer, works with single- and dual-crown forks, and does not rely on a classic tuning menu.

Why it matters

This matters for fast DH and bike-park setups because the goal is not tire protection but a calmer front-end feel and less rider fatigue. Conceptually, that is different from a classic tire insert.

What to watch out for

TMD is most useful once your base setup, cockpit position, and suspension are already sorted. If the front end is fundamentally unsettled, it will not replace proper tuning.

Best for

Riders who already have suspension setup under control and now want to work on hand fatigue, grip feel, and calmness at the cockpit.

Quick facts
Weight
250 g mass element, about 420 g unit weight
Fitment
Inside the steerer, compatible with single and dual crown forks
Note
According to the brand, optimized for 180 mm+ steerers
Official product image of the Rimpact Chain Damper
01.2RIMPACTCurrent drivetrain expansion
Vibration control, drivetrain quiet, and inserts

Chain Damper

With the Chain Damper, Rimpact moves away from the tire and toward a calmer drivetrain. The goal is less chain slap and less feedback from uncontrolled chain behavior.

What it does

The core idea is to momentarily capture chain energy and return it more smoothly instead of sending it into the bike and rider as a hard impulse. On the product page, Rimpact describes an elastomer-controlled negative stroke for smoother, quieter behavior.

Why it matters

Many DH and enduro bikes are highly developed on the suspension side but still feel noisy or nervous through the drivetrain. That is where the Chain Damper comes in and broadens Rimpact beyond puncture protection.

What to watch out for

It is not a must-have on every bike. If chain guide, chain length, and chain management are already very tidy, the gain will be smaller than on genuinely noisy bikes.

Best for

Gravity bikes where you want to actively improve chain noise, pedal feedback, and overall drivetrain calm.

Quick facts
Material
7075 aluminium
Mechanism
5 degrees of negative stroke with elastomer control
Weight
140 g excluding chainring, 230 g with
Official product image of the Rimpact insert line
01.3RIMPACTCurrent platform instead of one-size-fits-all
Vibration control, drivetrain quiet, and inserts

Insert-Linie: Race Edition, Pro V2, EDH

Rimpact now separates its inserts more clearly by use case: Race Edition for racing, Pro V2 as the broad gravity option, and EDH for especially hard DH and e-bike setups.

What it does

Race Edition cuts volume and weight significantly while, according to the brand, retaining most of the protection. EDH goes the other way and prioritizes maximum protection and support for heavier, faster use.

Why it matters

This is where the brand gets interesting: it is no longer selling just one insert, but a logic. The question is no longer simply whether to run an insert, but what tire behavior you actually want.

What to watch out for

Race Edition is not automatically the best choice. If you need more rim protection, tire support, and sidewall stability, Pro V2 or EDH will often make more sense.

Best for

Race Edition for DH casings and marginal gains, Pro V2 for most aggressive enduro/DH riders, and EDH for very hard tracks and heavier bikes.

Quick facts
Race Edition
According to Rimpact, 27 percent lighter than Pro V2 and around 90 percent of its impact protection
EDH
60 mm wide, 8 mm Pro layer, 180 g in 29 inch
Orientation
Race, gravity all-round, and maximum protection are clearly separated
Official product image of the FOX 40 Factory with GRIP X2
02.1FOXMY27 DH fork
Current DH front end plus air and coil rear

40 Factory - GRIP X2

The current 40 remains FOXs clear World Cup DH reference: 203 mm travel, Kashima stanchions, and GRIP X2 as the maximum-tuning option.

What it does

The technical direction is clearly focused on grip, traction, and calmness at high impact speeds. FOX highlights the revised GRIP X2 and GlideCore air spring combination to deliver support without excessive harshness.

Why it matters

If you want a real DH-oriented page, the 40 belongs on it because it is still FOXs direct gravity signal. It is not framed as a universal long-travel fork, but as a race tool.

What to watch out for

The 40 is a real DH fork, not a universal long-travel all-rounder. For trail bikes or lighter enduro use, it is simply more platform than you need.

Best for

Bike park, downhill racing, and riders who want maximum front-end precision with extensive tuning range.

Quick facts
Travel
203 mm
Damper
GRIP X2 with 23 valves according to the FOX page
Weight
about 2745 g according to the product page
Official product image of the FOX FLOAT X2 Factory
02.2FOXNew 2026 air platform
Current DH front end plus air and coil rear

FLOAT X2 Factory

The FLOAT X2 is not just a minor update. FOX presents it as a new monotube-oriented gravity air shock with 4-way adjustability and a stronger focus on durability and support.

What it does

FOX wants to keep the lively character of an air shock while addressing classic gravity concerns around heat stability, consistency, and mid-stroke support. That is why the move to a monotube layout matters so much.

Why it matters

Many riders want to run air in the rear without feeling like they are giving up serious gravity focus. That is exactly the gap the new FLOAT X2 aims to close.

What to watch out for

It is still an air shock. If you want maximum rear-end calm with as little setup thinking as possible, a coil option will often feel more natural sooner.

Best for

Racers and aggressive enduro/DH riders who want the progression, pop, and tuning flexibility of air with more gravity substance.

Quick facts
Architecture
Monotube, 4-way adjustable
Focus
Downhill and enduro according to FOX
Weight
starting at 708 g according to FOX
Official product image of the FOX DHX2 Factory
02.3FOXNew 2026 coil platform
Current DH front end plus air and coil rear

DHX2 Factory

The DHX2 remains the clear coil option in the FOX gravity system and also adopts the new monotube direction with full 4-way adjustability.

What it does

Compared with the air shock, the focus here is more on small-bump sensitivity, traction, and a very planted feel in rough terrain. FOX openly frames it for downhill and enduro rather than as a softened trail product.

Why it matters

For an informative page, the DHX2 matters because it makes the platform easy to read: FLOAT X2 for air riders, DHX2 for coil riders. That is conceptually much clearer than before.

What to watch out for

More grip and calm do not come for free. Compared with air, you give up some pop, some variability, and part of the weight advantage.

Best for

Riders who want maximum rear-end calm, lots of grip, and the classic coil feel for downhill or very hard enduro days.

Quick facts
Architecture
Monotube, 4-way adjustable
Shaft
0.5 inch damper shaft according to FOX
Weight
starting at 568 g without spring according to FOX
Official sources
Official product image of the RockShox BoXXer Ultimate
03.1ROCKSHOXCurrent D1 DH fork
BoXXer up front, Vivid or Vivid Coil out back

BoXXer Ultimate

The new BoXXer Ultimate clearly pushes a modern 38 mm DH platform with DebonAir+ Twin Tube Air Spring, Charger 3 RC2, and ButterCups.

What it does

RockShox wants to soften the classic harshness associated with older BoXXer setups without giving up race precision. The interesting point is not just stiffness, but the mix of higher ride height, sensitivity, and less high-frequency steering stress.

Why it matters

Compared with earlier DH forks, the current BoXXer reads as more mature. It is not just race-stiff; it is also meant to offer more control and less fatigue.

What to watch out for

Even the new BoXXer remains a full DH chassis. Outside that use case, it is neither necessary nor especially sensible.

Best for

DH riders who want a race-capable front end without constantly fighting harshness and chatter on long fast tracks.

Quick facts
Chassis
New 38 mm platform
Damper
Charger 3 RC2 with ButterCups
Weight
2880 g at 200 mm according to RockShox
Official product image of the RockShox Vivid Ultimate DH
03.2ROCKSHOXCurrent DH air shock
BoXXer up front, Vivid or Vivid Coil out back

Vivid Ultimate DH

The Vivid Ultimate DH is RockShoxs answer for riders who want the linearity and control of a highly gravity-focused air shock without moving all the way to coil.

What it does

TouchDown delivers position-sensitive damping, while Adjustable Hydraulic Bottom Out separately controls the last 20 percent of travel. RockShox is trying to stabilize the part of the stroke where DH air shocks often feel either too soft or too harsh.

Why it matters

The Vivid Ultimate DH matters for an innovation page because it shows that DH air no longer has to sound like a compromise. The platform is clearly chasing a coil-like ride feel without the full coil commitment.

What to watch out for

Very attractive for DH air, but not automatically simpler. If you want absolute rear-end calm and can accept a bit more weight, you may still end up preferring coil.

Best for

Riders who want a serious DH rear shock in air, with strong end-stroke control and a cleaner response to big hits.

Quick facts
Damper
TouchDown RC2 with Adjustable Hydraulic Bottom Out
Bottom out
5 external settings
Weight
about 710 g according to RockShox
Official sources
Official product image of the RockShox Vivid Coil Ultimate DH
03.3ROCKSHOXCurrent DH coil option
BoXXer up front, Vivid or Vivid Coil out back

Vivid Coil Ultimate DH

The Vivid Coil Ultimate DH is the most natural rear-end partner to the new BoXXer when you want the bike to feel maximally calm, planted, and predictable.

What it does

RockShox combines the naturally calm coil character with more adjustment, including Adjustable Hydraulic Bottom Out and a clear RC2T focus. That makes the coil not just a comfort part, but a genuine race tool.

Why it matters

If you want to explain modern DH bikes properly, you cannot talk only about air. Many heavy, fast bikes clearly benefit from coil calm and traction at the rear, and RockShox now offers a very clearly positioned option for that.

What to watch out for

Perfect for calmness and traction, but not for every riding style. If you prefer a lively rear end or want to save weight, you should seriously consider air as well.

Best for

Fast DH bikes, rough tracks, and riders who prioritize maximum planted feel and traction at the rear.

Quick facts
Damper
RC2T with Adjustable Hydraulic Bottom Out
Fine tuning
20 clicks rebound according to service documents
Character
Clearly coil-oriented for calmness and traction