Holdsworth Helm SRAM Rival AXS Titanium Road Bike Holdsworth Helm SRAM Rival AXS Titanium Road Bike Holdsworth Helm SRAM Rival AXS Titanium Road Bike Holdsworth Helm SRAM Rival AXS Titanium Road Bike Holdsworth Helm SRAM Rival AXS Titanium Road Bike
Frame
Clean lines, rounded tubes, uncluttered and unphased, The Holdsworth Helm has been meticulously designed and constructed using Aerospace Grade 9 3AL-2.5V Titanium, for unparalleled lightness and strength. With geometry that retains the high-speed pedigree of a pure road bike, but with modern touches that make it perfect for ultra-endurance expeditions also. This is a bike made for long, fast days in the saddle.
A CNC detailed tapered head tube allows for a large weld platform and bigger bearings. Resulting in a stronger, less flexible, and better handling front end. Hourglass profile chain stays and a 27.2mm seat post give comfort and spring. The bridgeless seat tubes offer sprightliness, whilst offering a clean aesthetic. Power is transferred directly though the creak free BSA threaded bottom bracket, which has been CNC engraved with the coordinates of the radar station at the peak of Great Dun Fell.
Versatile Road Geometry
Lightweight and High Strength Aerospace Grade 9 3AL-2.5V Titanium
Capable 700c x 32mm Tyre Clearance
Premium CNC Machined Detailing
Lifetime Frame Warranty
Groupset
Featuring ultra-reliable wireless shifting, innovative gearing, AXS App connectivity, and refined hydraulic disc brakes. It’s everything you could ask for in a modern groupset.
Wireless Shifting
Clean, safe, and reliable. SRAM Rival AXS wireless gear shifting is simple and intuitive. One button to go easier, one to go harder. Simple. A 60-minute battery charge lasts 60 hours, that potentially weeks and weeks of rides. It’s 100% waterproof and proven in the hardest racers on earth. No cables to stretch or get clogged with dirt. SRAM Rival AXS just works.
Efficient and Capable Gearing
Innovative 12-speed gearing provides huge range and tight jumps. Meaning you’ll always be able to find the right gear. Whether climbing the steepest hills or sprinting to the line. We’ve paired a 48/35 tooth front chainset to a 10-36 tooth rear cassette. For top end speed, this gives you a harder gear than a traditional compact groupset. And for the hills, the 35-tooth inner front chainring and 36-tooth cassette gives you the climbing potential other groupsets could only dream of.
AXS Mobile App
Control, personalisation, and monitoring are at your fingertips with the AXS mobile app. See how much time you spend in each cog, customise your shifting configuration, check battery charge status, and update firmware as needed right from your phone.
Disc Brakes for ultimate control
SRAM Rival AXS provides the best braking experience for all riders. Powerful hydraulic disc braking to inspire confidence, whatever the weather. No more achy hands after long descents. Reach adjustability for different hand sizes mean suitability for everyone.
Frame
Clean lines, rounded tubes, uncluttered and unphased, The Holdsworth Helm has been meticulously designed and constructed using Aerospace Grade 9 3AL-2.5V Titanium, for unparalleled lightness and strength. With geometry that retains the high-speed pedigree of a pure road bike, but with modern touches that make it perfect for ultra-endurance expeditions also. This is a bike made for long, fast days in the saddle.
A CNC detailed tapered head tube allows for a large weld platform and bigger bearings. Resulting in a stronger, less flexible, and better handling front end. Hourglass profile chain stays and a 27.2mm seat post give comfort and spring. The bridgeless seat tubes offer sprightliness, whilst offering a clean aesthetic. Power is transferred directly though the creak free BSA threaded bottom bracket, which has been CNC engraved with the coordinates of the radar station at the peak of Great Dun Fell.
Versatile Road Geometry
Lightweight and High Strength Aerospace Grade 9 3AL-2.5V Titanium
Capable 700c x 32mm Tyre Clearance
Premium CNC Machined Detailing
Lifetime Frame Warranty
Groupset
Featuring ultra-reliable wireless shifting, innovative gearing, AXS App connectivity, and refined hydraulic disc brakes. It’s everything you could ask for in a modern groupset.
Wireless Shifting
Clean, safe, and reliable. SRAM Rival AXS wireless gear shifting is simple and intuitive. One button to go easier, one to go harder. Simple. A 60-minute battery charge lasts 60 hours, that potentially weeks and weeks of rides. It’s 100% waterproof and proven in the hardest racers on earth. No cables to stretch or get clogged with dirt. SRAM Rival AXS just works.
Efficient and Capable Gearing
Innovative 12-speed gearing provides huge range and tight jumps. Meaning you’ll always be able to find the right gear. Whether climbing the steepest hills or sprinting to the line. We’ve paired a 48/35 tooth front chainset to a 10-36 tooth rear cassette. For top end speed, this gives you a harder gear than a traditional compact groupset. And for the hills, the 35-tooth inner front chainring and 36-tooth cassette gives you the climbing potential other groupsets could only dream of.
AXS Mobile App
Control, personalisation, and monitoring are at your fingertips with the AXS mobile app. See how much time you spend in each cog, customise your shifting configuration, check battery charge status, and update firmware as needed right from your phone.
Disc Brakes for ultimate control
SRAM Rival AXS provides the best braking experience for all riders. Powerful hydraulic disc braking to inspire confidence, whatever the weather. No more achy hands after long descents. Reach adjustability for different hand sizes mean suitability for everyone.
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📏 Sizing and Geometry

Rider Height Suggested Frame Size
5′4″ to 5′7″ XSM
5′6″ to 5′8″ SML
5′7″ to 5′10″  MED
5′9″ to 6′1″ LRG
6′0″ to 6′4″  XLG

    XSM SML MED LRG XLG
A Head Angle (degrees) 71.5 72 72 72.5 72.5
B Head Tube (mm) 100 120 140 160 180
C Top Tube  Effective(mm) 500 520 540 560 580
D Seat Tube Angle (degrees) 74 74 73.5 73.5 73
E Seat Tube C-T (mm) 485 515 535 555 575
F Chainstays (mm) 415 415 415 415 415
G BB Drop (mm) 74 74 72 72 70
H Stack (mm) 505 526 543 564 581
I Reach (mm) 355 369 379 393 402
J Front Centre (mm) 552 568 584 600 615
K Wheelbase (mm) 955 972 988 1004 1020

🔧 Build Kit

SRAM Flat Mount Disc Brake Mounting Hardware / 32mm / Single
Selcof Road Disc Carbon Fork / Matt Black
Selcof Carbon Steerer Fork Bung MK 4 / 23-24mm ID
Selcof Forged Alloy Bolt Up Seatclamp V3 / 31.8mm / 12mm / Black
Bike Build Packaging Rear Derailleur Protector
Selcof Headset Spacer Set / 1 1/8" / 15mm + 10mm + 5mm / Black
Selcof SPORT Integrated Cup Angular Contact Cartridge Bearing V2 Headset For Tapered 1" 1/8th – 1.5" Fork Steerer
Front Mech Band On Clamp For SRAM YAW / 31.8mm / Black

🔧 Groupset

SRAM Rival AXS HRD Hydraulic Disc Brake Lever With Flat Mount Caliper / Left Lever / Rear Brake / 2000mm / FM 20mm Offset
SRAM Rival AXS HRD Hydraulic Disc Brake Lever With Flat Mount Caliper / Right Lever / Front Brake / 1000mm / FM 20mm Offset
SRAM DUB BSA Bottom Bracket / 68mm Road / 73mm Road Wide
SRAM Rival XG-1250 12 Speed Cassette / 10-36 Tooth
SRAM Rival AXS 12 Speed Rear Mech / Max 36T
SRAM Rival AXS Front Mech / Braze On
SRAM Rival AXS 12 Speed Chain / 120 Link
SRAM Flat Mount Disc Brake Mounting Hardware / 15mm / Single
Avid Centreline Disc Brake Rotor / 160mm Centrelock
Ashima Flat Mount Adapter - Direct To 20mm
SRAM Powerpack For AXS / 2 Battery
SRAM Hydraulic Hose Fitting Kit Includes Barb And Olive / Single Barb
SRAM Hydraulic Hose Fitting Kit Includes Barb And Olive / Single Olive

Finance with Newpay and Planet X

You could enjoy a credit limit of up to £5000, and once you’ve bought something, you can choose a payment plan to suit you. It’s super-easy to apply and we’ll even do a no-risk check first to see if you're eligible

Easy Assembly

Assembling your new bike couldn't be easier. Every bike comes expertly packed at least 95% pre assembled, with step by step instructions to get the bike ready to roll. 

So you can get out on that first ride without delay! 

Hand Built in South Yorkshire

All Planet X, On One, Holdsworth and Titus Bikes are expertly hand built to order in South Yorkshire.

Every bike is comprehensively inspected before shipping to ensure your bike is perfect when it arrives at your door.

Not sure on your size? Get Fitted!

Get fitted to your bike at Planet X Headquarters by one of our trained fitters. 

With our Mini Bike Fit, we can advise on sizing, optimise your ride for maximum comfort and efficiency and help you make the right component choices. all for a refundable deposit of £25.

Customer Reviews

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