Mucky Nutz Butt Fender

£8.00 (RRP £10.00)

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If you want the simplest possible “fit and forget” option, the Butt Fender is the classic starting point. It sits under the saddle rails and mainly targets the strip of spray that hits your lower back and the back of your shorts. On an eMTB, it makes most sense for riders who do shorter commutes, mixed-surface rides, or winter trail sessions where you do not want to add bulk to the bike. It also works well if you regularly swap between bikes, because you can move it in minutes without messing with fork compatibility or frame clearance.

The reality check is coverage. A saddle-mounted flap will not protect the shock, pivots, or motor area, and it will not stop the fine mist that builds up in persistent rain. But for very little money and almost no weight, it does reduce the worst of “rooster tail” spray. As part of a wider setup, it pairs nicely with a front mudguard, because a lot of perceived wetness comes from the front wheel spraying back and up into the rider’s body and face.

Zefal Deflector RM60+

£11.99 (RRP £14.99)

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The Deflector RM60+ is one of the more practical budget rear options for riders who want a “real” mudguard shape without committing to a full rear assembly. It clamps to the seatpost and gives you a longer blade than a saddle flap, which helps reduce spray that would otherwise track up your jacket and soak your riding pack. For hardtail eMTBs, it is a straightforward solution: set the angle, leave enough clearance, and it generally gets on with the job. For mixed riding, including gravelly bridleways and winter lanes, it can also be a good choice if you want to keep the bike looking tidy and avoid a heavy rear framework.

Where clip-on rear mudguards can fall down is with full suspension. If your bike has a lot of travel and the rear tyre moves close to the seat tube at bottom-out, you need to be careful with positioning. It can still work, but you should check clearance with the shock compressed and be realistic about how much protection it can offer in proper UK slop. As an eMTB mudguard, it is best thought of as “comfort plus” rather than “bike protection”, because it does not shield pivots and linkages the way a frame-mounted rear guard can.

RockShox MTB Fender Short 3 Bolt

£18.00 (RRP £22.00)

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A direct-mount fork fender is one of the cleanest, most effective ways to improve front-end protection, and it matters on an eMTB because the front wheel does most of the “mud firing” that ends up on the motor, downtube and your face. The RockShox short 3-bolt fender mounts at the fork arch, providing a secure fit with no straps around the lowers and no zip ties to cut or replace. In practice, that means less movement, less rattling, and a more consistent gap to the tyre, reducing the risk of buzzing or rubbing when the fork flexes.

This mudguard style is not about maximum length; it is about controlling spray at its point of origin. It does a good job of keeping the fork crown area cleaner and reducing the amount of grit that gets thrown onto stanchions and seals. It also helps keep your face and goggles clearer at speed, which is a real benefit when you are riding UK trail centres in persistent drizzle. The key limitation is compatibility. You need the right fork and mounting points, so it is a great choice if it matches your setup, but not a universal solution.

SKS X-Blade Rear 29″

£19.99 (RRP £30.00)

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The X-Blade is a popular rear mudguard option because it hits a useful middle ground. You get far more coverage than a saddle flap, yet you avoid the complexity of a full rear system. The clamp mounts to the seatpost, and the blade itself is long enough to make a noticeable difference to rider comfort on wet UK rides. On a hardtail eMTB, it is a very workable everyday choice, particularly if your riding includes linking lanes, towpaths and bridleways with muddy trail sections. You can run it fairly close to the tyre for better spray control, and then adjust it out if you are heading into deeper mud.

For eMTB use, the X-Blade’s advantage is practicality. It is the kind of mudguard you can fit once and leave on for the winter, then remove in spring without leaving a mess of frame tape or cut zip ties. The trade-off is that it primarily protects the rider rather than the bike. It does not shield linkage bearings (as it is not a frame-mounted guard), and on full-suspension eMTBs, it can be sensitive to seatpost insertion depth and dropper use. Set it up carefully, and it can still be effective, but it is not as “fit to forget” as a purpose-designed rear guard for full suspension frames.

SKS Shockblade Front 29″

£22.37 (RRP £30.00)

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If you want a longer, more “traditional” front mudguard than a fork arch fender, the Shockblade is designed to do that job without needing a dedicated fork mount. It uses a steerer-tube-style fixing and positions the blade close to the front wheel, providing broader spray control on wet tracks. For eMTB riders who spend time on bridleways, forestry roads, and trail centres where you can build speed, extra length can make a real difference to comfort. You often feel it most in your feet and lower legs, because the Shockblade reduces the amount of water that gets thrown forward and then whipped back.

The strength of this style is versatility. If you run multiple bikes or are unsure which fork standard you will use next season, a more universal mount is attractive. The compromise is stability compared with direct bolt-on systems. Under repeated hits or very rough ground, a longer guard can flex more, and you need to be attentive to clearance if you run high-volume tyres. As part of a “best eMTB mudguards” setup, the Shockblade is a sensible pick when you want more coverage than a minimalist fender, but you still want something you can remove quickly when conditions improve.

RRP ProGuard V2 Standard

£22.39 (RRP £28.00)

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The ProGuard is one of the most common sights on UK trail bikes for a reason: it’s a simple, effective front mudguard that focuses on the spray that actually matters. Instead of trying to behave like a full front mudguard, it sits close to the fork crown and the tyre, controlling the mud that would otherwise blast straight into the fork seals, the downtube, and your face. On an eMTB, that kind of protection makes sense because reducing grit around the front end also reduces the amount of mess carried rearwards towards the motor and battery area.

The V2 Standard size is the sensible middle option for most riders. It offers substantial coverage without becoming so long that it catches more debris or becomes awkward to fit. The ProGuard design also tends to work well with modern tyre profiles, and the fitting system allows for a clean setup even if your fork brace shape is awkward. As with any zip-tie-style mudguard, long-term maintenance primarily involves replacing ties periodically and checking that the guard has not shifted after a crash. For riders seeking maximum cleanliness, you will still want a rear solution, but as a front eMTB mudguard, it remains a strong all-rounder.

Mudhugger FRX

£28.95

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The FRX is designed for riders who want a front mudguard with greater real-world coverage, especially when the trails are wet and speed increases. Compared with smaller fork fenders, it extends farther forward and back, reducing the constant fine spray that makes winter rides feel colder and more miserable than they need to be. For eMTB riders, that can be a big deal because the bike encourages longer rides in worse conditions. You might not mind the extra climb when you have assistance, but you will notice when you are soaked and carrying a layer of grit on your eyewear.

Fit is typically straightforward, and the guard is designed to sit securely without needing a specific direct-mount fork standard. That gives it a broader compatibility window than some bolt-on options, which is useful if you have multiple bikes in the household. The main compromise is that longer guards can trap more mud in extreme clag if clearance is too tight, so setup matters. Leave enough space for your tyre and accept that, in true UK peanut-butter mud, no mudguard will be completely silent. If your priority is staying cleaner and keeping the front end of your electric mountain bike in better shape across winter, the FRX is an easy one to justify.

Mudhugger Rear Mudhugger MK2 Large

£35.99

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The Mudrocker Front is designed for riders who want a front mudguard that feels closer to a full-length solution, without the permanence and complexity of traditional fixed guards. It’s a good fit for eMTB riders who ride all winter and want to reduce the amount of spray that ends up on the bike as well as the rider. The extra length and shaping can make a noticeable difference on trail-centre-style riding, where speed is high, and the front wheel constantly throws water into the downtube and motor area.

What earns it its place on a “best eMTB mudguards” shortlist is its balance of coverage and adjustability. You can usually dial it in so it sits close enough to do the job, while keeping enough clearance for a 29er trail tyre that may deform under load. It is also a good option if you regularly change tyres throughout the year, as a small fender designed for a summer setup can become noisy in winter mud. The Mudrocker gives you more headroom. The compromise is bulk and weight compared with minimalist fenders, and the need to fit it carefully so it does not foul cables or rub under fork flex.

SKS Mudrocker Front and Rear Set

£58.33 (RRP £70.00)

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If you want the closest thing to a “proper” winter solution without moving to traditional fixed mudguards, the Mudrocker set is the obvious answer. The main benefit is that you are tackling both ends of the problem. The long front guard reduces spray into the downtube and motor area, while the rear section helps stop the rear wheel from coating the shock and linkage zone. On an eMTB, that matters more than it does on a standard MTB because you tend to ride further, in worse weather, and the bike’s extra weight and power can mean you carry more speed through wet sections.

The set makes most sense for riders who treat winter as a full riding season, not an off-season. It adds more weight than a minimalist setup, and it takes longer to fit properly, but you get a more complete result. If you commute on your eMTB, link bridleways between villages, or ride trail centres weekly regardless of the weather, it can pay off quickly in comfort and reduced cleaning time. The important point is fit. You still need to check tyre clearance, suspension movement, and whether the rear piece sits correctly on your frame. Get it right, and it is one of the most effective eMTB mudguard options for UK riding.