Guy Kesteven
Guy Kesteven is Bike Perfect's technical editor-at-large. Hatched in Yorkshire, he's been hardened by riding round it in all weathers since he was a kid. He started writing and testing for bike mags in 1996. Since then he’s written several million words about several thousand test bikes and a ridiculous amount of riding gear. To make sure he rarely sleeps and to fund his custom tandem habit, he’s also penned a handful of bike-related books and he reviews MTBs over on YouTube.
Current rides: Cervelo ZFS-5, Forbidden Druid V2, Specialized Chisel, custom Nicolai enduro tandem, Landescape/Swallow custom gravel tandem
Height: 180cm
Weight: 69kg
Latest articles by Guy Kesteven
![Pace RC429 MTB viewed from the side on a gravel path](https://cdn.mos.cms.futurecdn.net/m9khvZVV8mD96uqouBRbem-320-80.jpg)
Could Pace’s radical RC429 really be the one bike that does it all? The brand claims it's a trail, XC, adventure and gravel bike all-in-one, I put it to the test and the results really surprised me
By Guy Kesteven published
Review Pace reckons its latest steel RC429 hardtail works as a proper progressive trail slayer AND a fully loaded, kitchen sink spec drop bar adventurer. Surely there have to be some compromises?
![Voodoo Canzo 2025](https://cdn.mos.cms.futurecdn.net/XTeReJr9rw3D56PZCa5j76-320-80.jpg)
Voodoo looks to be working some serious money magic with their latest Canzo and Canzo Pro full-suspension bikes
By Guy Kesteven published
News Voodoo’s all-new 140mm travel Canzo 29er frame has totally up-to-date aggro geometry, loaded with Maxxis tires, RockShox suspension, and Shimano stop-and-go with complete bike prices starting at just £1400
![Trek Top Fuel 9 Gen 4](https://cdn.mos.cms.futurecdn.net/nXGXawuE2v4Qi85A6QLf58-320-80.jpg)
Trek’s latest alloy Top Fuel is an awesome short-travel charger – I made some simple changes during testing and made it even better
By Guy Kesteven published
Review
![SRAM Red XPLR on Santa Cruz Stigmata](https://cdn.mos.cms.futurecdn.net/iTHJ9DKJjWtsRCZoiSPU6i-320-80.jpg)
I've ridden SRAM's RED XPLR AXS groupset for hundreds of kilometers. Here's why I think it's the future of gravel gearing (and hopefully XC MTB too)
By Guy Kesteven published
Review The numbers and features of SRAM’s new RED XPLR AXS gravel group look next level, but how do they add up in terms of practical performance on the trail?
![Santa Cruz Bronson 5](https://cdn.mos.cms.futurecdn.net/LXMJQgVAerJACVnmw4dRxW-320-80.jpg)
I tested Santa Cruz’s new Bronson XO AXS RSV to find out if it's still a party animal or a serious gravity machine?
By Guy Kesteven published
Review Santa Cruz’s mid-travel MX bike is now smoother, slacker, and more confident at speed and in the steeps, but has it lost its signature rider-reactive agility?
![Guy Kesteven in horrible kit with a horrible bike](https://cdn.mos.cms.futurecdn.net/Rcvj8nvcMD3776LNjptUhH-320-80.jpg)
From trail centers to racing, UK mountain biking is in a real crisis right now. Should you care and what can you do about it?
By Guy Kesteven published
News Guy Kesteven looks at the now-and-next of mountain biking and thinks about what we can do to create the future we want. You might find his conclusion hard to swallow though….
![Bottle in Elite Prism bottle cage on mountain bike](https://cdn.mos.cms.futurecdn.net/c9oNcUqZss69KFdJPbNgXT-320-80.jpg)
Best MTB bottle cages – top-rated, secure and easy-to-use cages for off-road riding
By Rich Owen last updated
Buyer's Guide Our test team's pick of the best MTB bottle cages to keep your water bottle secure out on the trails
![Santa Cruz Tallboy 3 seen side on at a grassy hilltop](https://cdn.mos.cms.futurecdn.net/2HvFJznntJvUYyfXgHXBCh-320-80.jpg)
Riding a classic MTB from a few years ago taught me a lot about what really matters when buying a new bike
By Guy Kesteven published
Opinion Riding an old Santa Cruz Tallboy mountain bike really opened tech expert, Guy Kesteven's, eyes on recent bike progression and long-term value versus short term 'bargains'
![Two riders on the best budget e-MTBs](https://cdn.mos.cms.futurecdn.net/wUcRfyoihhEkdQSMUAPJU9-320-80.jpg)
Best budget e-MTBs 2024 – top-rated cheap electric mountain bikes that won't break the bank
By Guy Kesteven last updated
Buyer's Guide Go further and faster for less with our pick of the most affordable e-MTBs
![A rider wearing one of the best mountain bike helmets](https://cdn.mos.cms.futurecdn.net/8QEixDSEtgDvLphwzYVujN-320-80.jpg)
Best mountain bike helmets 2025 – top-rated head protection for trail, XC and enduro
By Graham Cottingham last updated
Buyer's Guide Our expert pick of the best MTB helmets to protect your head and ensure you look good on the trail
![Trek Top Fuel Gen 4 riding shot](https://cdn.mos.cms.futurecdn.net/5ZyY9wjr4LiYKNjGzE23uQ-320-80.jpg)
Bespoken Word – Is the bike industry a lesson in 'knowing the price of everything and the value of nothing?'
By Guy Kesteven published
Opinion Guy Kesteven talks about how an old proverb is very relevant to the bike industry right now and how that is affecting his reviewing work
![Two riders on the new Trek Top Fuel Gen 4](https://cdn.mos.cms.futurecdn.net/ZDwYsbaxUEdBnRqnLoVz2k-320-80.jpg)
Are small evolutions enough to keep Trek’s all-new Top Fuel Gen 4 in the hunt for more ‘bike of the year’ wins?
By Guy Kesteven published
News Trek are very much taking the ‘if it ain’t broke, don’t fix it’ approach to refuelling their super popular Top Fuel trail / downcountry mountain bike. But is that the right move to make?
![Bike locks grid layout](https://cdn.mos.cms.futurecdn.net/Jziopx4YCBekAxAyMvs6HM-320-80.jpg)
Best bike locks – protect your MTB from being stolen
By Guy Kesteven last updated
Buyer's Guide Bike theft is a horrible thing to go through, so thwart thieves with the most secure bike locks for MTBs
![Guy Kesteven riding the Specialized Stumpjumper 15 Pro](https://cdn.mos.cms.futurecdn.net/Jvqgdxb8kBK4x4UcxkThxi-320-80.jpg)
Now could be the worst time ever to launch a new MTB, so how are bike brands handling that and should you buy one?
By Guy Kesteven published
Opinion It’s a really hard time to launch a new MTB for a whole bunch of reasons, but why is that and who’s doing it best?
![A tubeless tire valve on a bike wheel](https://cdn.mos.cms.futurecdn.net/DTiiYUFw2Wz4g66bUmQ2bK-320-80.jpg)
Best tubeless tire valves – top-rated MTB and gravel bike valves tested by our experts
By Guy Kesteven last updated
Buyer's Guide It used to just be about color matching but valve designs have got a lot smarter recently. Are clever cores worth the extra money or will more basic bargains do the job just as well?
![One of the best budget mountain bikes the Merida Big Trail viewed side on outdoors](https://cdn.mos.cms.futurecdn.net/4A5qKHefPrzqEvJSjZBunF-320-80.jpg)
Best budget mountain bikes 2024 – our test team's pick of sorted MTBs at affordable prices
By Guy Kesteven last updated
Buyer's Guide We showcase the best budget mountain bikes made for proper trail riding
![Merida Big Trail 600 2025 viewed side on outdoors](https://cdn.mos.cms.futurecdn.net/4A5qKHefPrzqEvJSjZBunF-320-80.jpg)
I rode Merida’s all-new Big Trail 600 hardtail MTB and the fresh geometry makes it a fantastically rad riding freak
By Guy Kesteven published
Review The kick stand compatible daily driver that can totally kick ass on the raddest enduro trails
![Stumpjumper 15 Pro seen side on at a trail head](https://cdn.mos.cms.futurecdn.net/DB8VVSSc4YhZFENUZtYuJY-320-80.jpg)
I've been testing Specialized Stumpjumpers for over 30 years, but this new version is the most awesome Stumpy ever
By Guy Kesteven published
Review Genie shock tech adds extra suspension wishes to Specialized's already awesome MTB all-rounder
![Two B'Twin bikes leant on a beachside fence](https://cdn.mos.cms.futurecdn.net/FUsz3Hi6sTxADb3zjUVCRE-320-80.jpg)
I switched testing high-performance MTBs to riding a battered B'Twin shopping bike and rediscovered the sheer joy of simply cycling
By Guy Kesteven published
Features Guy Kesteven had a holiday romance this week, falling in love with the simple joys of cycling in its most basic form. He reckons it’s an affair we could all do with having and involving others in too
![Jesse Melamed riding at the EWS on one of the best enduro bikes](https://cdn.mos.cms.futurecdn.net/d6QdHBKwRNCVvhSjwArAKX-320-80.jpg)
Best enduro mountain bike – we test the top options for racing or burly trail and gravity blasting
By Guy Kesteven last updated
Buyer's Guide The best enduro mountain bikes are fast, light and comfortable enough to ride all-day, here are our top picks
![Mountain bike fitted with the 2025 RockShox Lyrik Ultimate](https://cdn.mos.cms.futurecdn.net/DNGEzYLY73NKhQbWmzJUAN-320-80.jpg)
Mountain bike suspension forks explained – we break down every technical term and piece of jargon to help you better understand your MTB fork
By Guy Kesteven last updated
Feature Our easy, A to Z expert guide on what all the bits of your suspension fork are called and what they do
![Rider at dawn](https://cdn.mos.cms.futurecdn.net/3SocaM7UsaFwCKEEMm9MnV-320-80.jpg)
Going long on the shortest night – an epic, all-night, solstice MTB ride
By Guy Kesteven published
Feature Guy Kesteven and his mates always head out for an overnight mountain bike epic somewhere around the summer solstice. But what’s so special about celebrating the longest day and shortest night on your favorite singletrack?
![A new RockShox Flight Attendant equipped mountain bike being ridden down a trail](https://cdn.mos.cms.futurecdn.net/FDREnCphUnvaEtpBRHXuqi-320-80.jpg)
Is RockShox relaunched Flight Attendant the ultimate ‘automatic’ suspension for trail and enduro riders?
By Guy Kesteven published
News RockShox is relaunching the latest ‘powered up’ version of its AI-automated Flight Attendant suspension back into the rowdy end of riding by combining it with their latest fork and shock changes
![A man wearing a pair of the best mountain bike shorts](https://cdn.mos.cms.futurecdn.net/oda6Ay7hH7kshAGtqZ4GXF-320-80.jpg)
Best mountain bike shorts 2025 – we test the top baggy shorts from budget to premium
By Richard Owen last updated
Buyer's Guide Our team of highly experienced testers give you their pick of top MTB shorts covering every kind of riding situation
![Specialized Chisel FS seen side on](https://cdn.mos.cms.futurecdn.net/XJX9ewNyMa5ggY8M8w45DR-320-80.jpg)
Specialized Chisel FS review – awesome ‘economy Epic’ XC mountain bike
By Guy Kesteven published
Review Guy Kesteven has been testing the brand new Chisel FS to find out if the alchemic SmartWeld alloy frame and basic SRAM spec can shine through to create a cost-effective cross-country champion