B-RZ20086
736313570052
A Suspension Stem That Makes Your Existing Bike Smoother and Faster
The Redshift Sports ShockStop is a suspension stem that adds meaningful front-end compliance to any bike without changing the bike itself - no frame modification, no suspension fork, no new wheels. It replaces the standard rigid stem with a unit that provides up to 20mm of effective suspension travel at the handlebar, absorbing road imperfections, gravel chatter, and vibration before they reach the rider's hands and arms. The result is reduced fatigue on longer rides, improved control on rough surfaces, and - perhaps counterintuitively - faster riding, because energy that would otherwise be spent by the rider's body absorbing impacts is kept in forward motion instead.
The ShockStop's minimal design is deliberately understated - it is engineered to blend visually with modern road and gravel bikes rather than announcing itself as a suspension component. From a few metres away it is difficult to distinguish from a standard stem, making it a practical upgrade for riders who want the performance benefits of front-end compliance without the visual departure from a clean cockpit aesthetic.
The stem is built from 6061-T6 aluminium - a strong and lightweight alloy specification appropriate for a stem that must handle the full range of rider input forces at the handlebar while also managing the additional pivot and spring loads of the suspension mechanism.
Note: Clamp diameter, steerer diameter, stem length, and rise options are not specified in the provided product information. Confirm these specifications with Trek Bikes Florida before purchase to ensure compatibility with your handlebar and fork steerer.
- Go further - reduce fatigue from bumps and vibrations
- Ride faster - energy that is normally wasted suspending your body is converted into forward motion
- Take control - customize your suspension feel to float over obstacles and maintain control over rough terrain
- 6061 T6 aluminum construction
- Effective suspension travel up to 20mm. Stem includes 5 swappable elastomers to fine tune your riding style
20mm Suspension Travel and 5 Swappable Elastomers
The ShockStop provides up to 20mm of effective suspension travel - a meaningful amount at the front of a rigid or lightly suspended bike where the standard stem provides zero compliance. At the handlebar position, 20mm of travel translates into a significant reduction in the peak impact force transmitted to the rider's hands and arms from road and gravel surface irregularities.
The suspension feel is controlled by five swappable elastomers included with the stem. Elastomers are the rubber-compound spring elements inside the ShockStop that determine how the stem responds to different inputs - softer elastomers provide more compliance for heavier vibration absorption, firmer elastomers provide less travel for riders who prefer a more direct feel or ride on smoother surfaces. Having five options allows the rider to tune the suspension character to their weight, riding style, and typical terrain without purchasing additional components - the full range of adjustment is included in the box.
Swapping elastomers is a tool-based process that can be done at home without specialist equipment, allowing the rider to experiment with different elastomer combinations and dial in the feel that suits them best over time.
Fatigue Reduction, Control, and Application
The ShockStop is positioned by Redshift Sports around three practical riding benefits. The first is going further - by reducing the fatigue that accumulated road and gravel vibration imposes on the rider's hands, arms, and upper body, the ShockStop extends the comfortable riding distance before fatigue becomes a limiting factor. The second is riding faster - because a rider who is not working to absorb impacts is directing that energy into pedalling instead. The third is maintaining control - a stem that floats over obstacles rather than transmitting them directly to the handlebar allows the rider to maintain a more consistent line and more confident steering on rough terrain.
The ShockStop suits road endurance riding, gravel riding, and any context where a standard rigid fork setup transmits uncomfortable levels of vibration to the rider without the rider wanting to change the fork or frame.
FAQs
How much suspension travel does the ShockStop stem provide?
The ShockStop provides up to 20mm of effective suspension travel at the handlebar, absorbing road and gravel imperfections before they reach the rider's hands and arms.
How are the elastomers swapped on the ShockStop?
Five elastomers are included with the stem, each providing a different suspension feel from softer to firmer. They can be swapped at home without specialist tools, allowing the rider to tune the suspension character to their weight, riding style, and terrain.
Will the ShockStop fit my bike?
The ShockStop replaces the existing stem on any compatible bike. Clamp diameter, steerer diameter, stem length, and rise specifications are required to confirm compatibility - contact Trek Bikes Florida with your bike's stem dimensions before purchasing.
Does the ShockStop affect the handling of the bike?
The suspension pivot operates in the vertical plane - absorbing vertical impacts - while the stem remains rigid in the horizontal plane for steering. This means the ShockStop provides compliance without introducing vagueness or flex into the steering feel of the bike.
What material is the ShockStop stem made from?
The stem is constructed from 6061-T6 aluminium - a strong and lightweight alloy specification appropriate for the combined stem and suspension mechanism loads it must handle.
Specs:
| Stem Angle (deg) | -6, 30 |
| Length | 100, 110, 120, 55, 70, 80, 90 |
| Material | Aluminum |
| S.H.I.S. Stem Clamp Diameter | 28.6 |
| Bar Clamp Diameter (mm) | 31.8 |
| Color | Black |
| Weight | 185, 212, 264, 274, 286, 298 |
| Defined Color | Black |
| Stack Height | 40, 44 |