At the Taipei International Cycle Show in early 2026, RST unveiled something that immediately changed the conversation about gravel bike technology: the E-TACK, an electronically-damped upside-down (inverted) suspension fork designed specifically for gravel cycling. If it delivers on what the spec sheet promises, it could represent the biggest leap in gravel bike technology since the tubeless revolution.
Gravel suspension has always been a tricky proposition. The terrain gravel riders face — rough dirt roads, loose stones, embedded rocks, washboard tracks — demands compliance and damping. But traditional mountain bike suspension forks are too heavy, too travel-heavy, and too sluggish in their steering geometry for gravel’s unique blend of efficiency and adventure. The RST E-TACK attempts to solve this with an entirely different engineering approach.
What Is the RST E-TACK Fork?
The E-TACK is an inverted (upside-down) fork — meaning the stanchions (the inner legs) are at the top, connected to the crown, while the outer tubes slide over them and attach to the axle. This design, long used in motorcycling and increasingly adopted in mountain biking, offers two key advantages: reduced unsprung weight (the weight below the suspension point) and improved stiffness-to-weight ratio.
What makes the E-TACK genuinely novel is the electronic damper. Traditional suspension forks use mechanical or hydraulic damping — valves and oil that control how quickly the fork compresses and rebounds. RST’s electronic damper uses sensors and actuators to adjust damping in real time, responding to terrain inputs faster than any mechanical system can.
The power source is equally clever: when paired with an electric gravel bike, the E-TACK draws charge from the main e-bike battery — no separate battery required. For conventional (non-electric) gravel bikes, a small battery housed in the steerer tube powers the system. RST hasn’t published the battery life specifications yet, but early reports from the show suggest multi-day capability on a single charge.
Why Electronic Damping Matters for Gravel
On gravel, the terrain changes constantly and unpredictably. You might spend five minutes on a smooth packed-dirt road, hit a kilometre of rough embedded rocks, cross a cattle grid, and then loop back to smooth gravel — all without warning. A suspension system that adjusts only as fast as you can manually switch between preset modes is inherently reactive. An electronically-damped system that senses and responds autonomously is proactive.
The practical benefits include:
- Better traction on variable terrain: Electronic damping keeps the wheel in contact with the ground more consistently, improving both control and rider comfort.
- Less fatigue on long rides: Sustained vibration and impact absorption is one of the primary sources of arm and upper-body fatigue on rough gravel. Effective damping reduces this meaningfully.
- No manual adjustment required: The system handles terrain adaptation automatically, allowing riders to focus on effort and navigation rather than fork settings.
- Weight optimization: Electronic systems can be tuned to provide the same damping performance as heavier mechanical systems at lower weight — important for gravel bikes where every gram counts on long days.
For those building out a gravel-optimised setup, this fork would represent a significant upgrade over the rigid or basic suspended options currently available. But it’s worth understanding the full system — tyres, bike fit, and handlebar setup all interact with suspension. Our guide to gravel bike tyres covers one half of that equation, and our gravel cycling hub provides the broader framework for building an effective gravel setup.
How It Compares to Existing Gravel Suspension Options
The gravel suspension space currently consists of a few meaningful options:
- Lauf Grit: A leaf-spring fork that provides compliance without the weight or complexity of oil-damped systems. Light and low-maintenance, but fixed damping response.
- Fox Transfer/RockShox Rudy: Traditional oil-damped suspension forks adapted for gravel — more travel and adjustability than rigid, heavier than a Lauf, mechanically tunable.
- Redshift ShockStop: A suspension stem that absorbs vibration at the handlebar rather than the front axle — lighter than a fork, but limited in its impact absorption.
The RST E-TACK represents a category shift. It’s the first gravel fork with active electronic damping, which puts it in a fundamentally different performance tier — if the real-world results match the engineering claims. Weight, ride feel, and long-term reliability will be the deciding factors once journalists and riders get extended time on it.
What This Means for the Gravel Bike Market in 2026
The Taipei Cycle Show 2026 made several things clear about where the gravel market is heading: lighter integration, smarter electronics, and a blurring line between e-gravel and conventional gravel. The RST E-TACK sits at the intersection of all three trends.
The fork’s dual compatibility — working with both electric and conventional gravel bikes — is commercially savvy. It means RST can serve two growing market segments simultaneously, and it positions the E-TACK as relevant for the next three to five years of product cycles regardless of how quickly e-gravel adoption accelerates.
The timing is also notable. As we reported earlier this year, lightweight electric gravel bikes have moved firmly into mainstream consideration — with motors like the Mahle X20 and TQ HPR50 now producing bikes that feel close to their non-motorised counterparts. A high-performance electronic fork that integrates seamlessly with these systems is the logical next component in that evolution.
Availability and Pricing
RST has not yet confirmed a retail price or launch date for the E-TACK. Taipei Cycle Show reveals often precede production-ready products by six to twelve months, so a late 2026 or early 2027 retail availability window seems plausible. Given the electronic complexity and the niche positioning, expect a premium price point — likely above €800-1000 as an aftermarket component.
Whether it arrives as an OEM component on complete bikes (more likely for the e-bike integration version) or as an aftermarket upgrade (better suited to conventional gravel riders) will shape who actually gets access to it first.
For those looking to understand the full spectrum of gravel bike options available right now, our gravel bike vs road bike comparison and our in-depth e-bike guide provide the context needed to evaluate where this technology fits in your riding plans.
The Bottom Line
The RST E-TACK is the most interesting piece of gravel bike technology revealed at Taipei Cycle Show 2026 — and one of the most conceptually significant gravel innovations in several years. Electronic damping has transformed mountain biking; there is no obvious reason it shouldn’t have a similar effect on gravel cycling given sufficient real-world validation.
