Touted as the perfect upgrade for an electric mountain bike, the SDG Bel-Air V3 Max boosts the same formula as the beloved Bel-Air V3 with extra padding and a deeper perennial relief channel. There’s plenty of support on offer in a durable package but wider options would greaten its appeal.

 

SDG Bel-Air V3 Max Lux-Alloy saddle – Technical details

The SDG Bel-Air is a classic saddle. It’s been around for 20-odd years and in its latest V3 build, it’s been shortened to work better with modern MTB geometries.

This Max model Bel-Air boasts an EVA injected foam padding that is 5mm thicker than the standard model. Due to the increased thickness, there’s a more pronounced perennial relief channel. Additionally, there’s a taller and steeper rear rise on the saddle shaped for more support when climbing.

2024 sdg bel air max logo.jpg
2024 sdg bel air max logo (Image Credit: Farrelly Atkinson)
2024 sdg bel air max logo.jpg, by Liam Mercer

SDG increases comfort further with its ATMOS shaping that favours vacuum sealing over bumpers, staples or glue to keep the cover in place.

All of the Bel-Air V3 Max’s foam sits on top of a nylon glass base with a hidden cut out that should encourage a level of compliance. SDG has made the wings of the saddle more flexible which should help the saddle comply with the body’s movement when pedalling.

Sonic welded corners improve durability and there’s a wide nose for comfort when climbing.

The Bel-Air V3 Max is available in one size (260mm length/140mm width) with a claimed 245g weight.

SDG Bel-Air V3 Max Lux-Alloy saddle – Performance

With the standard Bel-Air V3 provding me with impressive comfortable levels on big rides, the prospect of even more compliance was good to hear. However, through its increased foam comes interesting results.

2024 sdg bel air max logo 2.jpg
2024 sdg bel air max logo 2 (Image Credit: Farrelly Atkinson)
2024 sdg bel air max logo 2.jpg, by Liam Mercer

It works and feels mostly like that incredibly solid saddle that this Max version uses as its foundation. Where it’s shorter, there’s still plenty of space on the saddle to shift weight around and provides a surprisingly solid platform for steep climbs.

Moving more rearward results in more support, which helps hang weight further over the rear wheel which boosts traction. So despite its shorter length, the saddle provides a great amount of surface area in which to manipulate weight.

The extra foam does great things to boost the efficacy of the perennial relief channel and, because of that, it’s become very popular with e-bikers. It will also appeal to those who prioritse perennial relief. 

2024 sdg bel air max hero 2.jpg
2024 sdg bel air max hero 2 (Image Credit: Farrelly Atkinson)
2024 sdg bel air max hero 2.jpg, by Liam Mercer

It’s great to see a hint of flex in the saddle, too, as it helps it move a little bit under pedalling loads, keeping support plentiful but without becoming uncomfortable. However, there is one barrier in the comfort department – and that’s the width.

With marginally more foam, the saddle isn’t quite as flat as the standard model so it’s usable surface area isn’t as great. Because of that, it’s better suited to riders with narrower sitbones. As a rider with wider sitbones, the saddle became uncomfortable deeper into big rides, where I wished for just a bit more width. 

2024 sdg bel air max rear.jpg
2024 sdg bel air max rear (Image Credit: Farrelly Atkinson)
2024 sdg bel air max rear.jpg, by Liam Mercer

As usual, the saddle’s durability is impressive and even after 70km of the wettest riding I’ve ridden in all year, it’s all looking rather good, aside from a bit of the typical wear you’ll find on the saddle rails.

SDG Bel-Air V3 Max Lux-Alloy saddle – Verdict

At a little under £90, this saddle poses good value for electric mountain bike users – as it’s on par with other saddles such as Ergon’s SM E-Mountain Sport saddle. It gets all the niceties of the SDG Bel-Air V3 Max Lux-Alloy, but weighs more, coming in at 335g for the S/M size and 350g in the M/L size. However, on an e-bike, I value comfort over weight and having the extra size option is a big plus.

The Fizik Terra Aidon X5 saddle steps things up £10 in price at £100. It’s a short-nosed saddle claimed to put the rider in a more planted position over the bike and also gets a kicked tail. While we’ve not got a standalone review of this saddle – yet – I’ve had mixed feelings as it’s not been that comfortable deeper into rides.

That said, regular saddles that may not cost as much can provide just as much comfort, they just forgo some e-MTB specific features.

If you’re looking to boost comfort during long e-mountain bike rides, the SDG Bel-Air V3 Max Lux-Alloy is a great place to start. Its rear ramp boosts support while its deeper perennial relief channel improves long-term comfort. But it’s well worth double-checking your sit bone width, as those with wider sit bones won’t gel as well as those with narrow bones.

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Test report SDG Bel-Air V3 Max Lux-Alloy saddle review £90.00

Product purpose: 

SDG says, “The new V3 Max is Pure Comfort. Utilizing the same performance driven base as the original Bel-Air V3, the Max was specifically enhanced for long, pain-free days in the saddle” Personally, I’d have a better time on a wider saddle but the comfort features added are valuable.

Build extra: 

Extra Rear Rise Platform – Optimum power and comfort from the sitting position.
Deep Peri-Canal – Continuous relief channel reduces sensitively in the perineum region.
Injection EVA Foam – Enhanced Lightweight Injected EVA – 5 mm thicker than standard V3.
Hidden Undercut – Cutout relief under the base of the saddle.
Nylon Glass Base With Bridge – Increases power transfer.
Free Float Comfort Flex – Enhances pedaling efficiency, providing more forgiveness at the wings.
Nose Platform – Wider nose to aid in climbing.
Atmos Sealed Construction – Eliminates the need for staples and bumpers on the base of the saddle.
Sonic Welded – Added protection on corners for superior durability.

Product construction 


Product construction extra: 

No complaints, it would be good to see width options.

Product performance 


Product performance extra: 

The saddle does what it says on the tin but would be improved with more width options.

Product durability 


Product durability extra: 

Typically the rails wear but the saddle stands up well.

Product comfort 


Product comfort extra: 

Comfort boosting features do work but it would be good to see more width.

product value 


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Product value extra: 

You can get regular saddles that work very well for less money, but its competitive against other e-MTB saddles.

Overall performance: 

A good saddle for the narrow hipped looking for boosted comfort.

Product likes: 

Raise tail, thick nose and deeper channel.

Product dislikes: 

Lack of width options. Extra foam creates more curved wings and a rounder profile.

Enjoy: 

Yes

Buy: 

No – need a wider saddle

Recommend: 

Yes

Conclusion: 

A competent and effective e-mountain bike saddle that’s ready to improve comfort and support.