

MASON x HUNT 650B Adventure Sport Disc Wheelset
19 Deep | 29 Wide Ext | 25 Wide Int | 1594g
THE SECOND IN A LINE OF MASON X HUNT COLLABORATIVE EFFORTS. THE GO-TO 650B/27.5" WHEELS FOR YOUR GRAVEL/BIKEPACKING RIG
19 Deep | 29 Wide Ext | 25 Wide Int | 1594g
The Purpose
The second MASON x HUNT collaboration, bringing go-anywhere capabilities to bikes like the fast, fun and highly-versatile MasonCycles.cc Bokeh. The new breed of Adventure Sport focused bikes have the ability and attitude for those fun trail thrashes and bike-packing adventures, whilst not compromising anything for fast-far road days. Read More
The opportunity to open up your riding comes from bikes which have geometry designed to ride excellently with both 700c or 27.5" (650b) wheels. This combination works thanks to the extra volume in a 2" x 27.5" tyre, providing an almost identical external tyre diameter to a normal road sized 700c wheel with a 33mm tyre, leaving the bike geo unchanged. What was needed was a bike that could accommodate the extra tyre width, while still running road groupsets, geo and components. That is exactly what Mason have created, and perfected with their incredible eye-for-detail.
We’re delighted to have designed the wheels for the job. These wheels will perfectly compliment other gravel bikes with dual 650b/700c compatibility. Oh, and if you are looking for a 700c wheelset for your drop bar adventure/go-anywhere bike, then our 4 SEASON GRAVEL DISC would be well worth a look. Read Less
Key Features
Smaller Wheels, Bigger Tyres, More Opportunities
- Rims | Super-wide (29mm external, 25mm internal) 6066-T6 (+34% tensile strength vs 6061-T6) Heat treated. Disc specific. Asymmetric for balanced spoke tensions and a highly-durable wheel build. ETRTO 584x25.
- Tyres | Tubeless-ready for lower weight & rolling resistance, featuring H_LOCK bead-seat for easy and secure tubeless installation. Also works excellently with clincher tyres and tubes.
- Hubs | HUNT 4 Season Disc J-bend spoke hubs with extra bearing shielding. 10 degree FastEngage 4-pawl freehub, with H_CERAMIK coating for enhanced durability. SRAM XD and XDR Driver available. Centre-lock disc mount.
- Axles | Easily adaptable & we fit them for you. Fit all current axle sizes and are easy to change; Front - QR, Bolt thru 12/15/9mm, Rear - QR, Bolt thru 12x142, 12x135, 10x135.
- Hand-built | All of our wheels are built and finished by hand, inclusive of a full quality control inspection.
- Included | Tubeless tape & valves, spare spokes, axle adapters (please fill in the simple form after checkout to select your required size).
- Weight | 1594g
- See the full specs here
Please note: If you require a 6 bolt adaptor you can purchase separately here
Full Specs
Rims
- Tubeless-ready – designed to work excellently with normal clincher tyres and tubes or tubeless tyres. HUNT Black Shield tubeless rim tape and valves included.
- H_Lock bead-seat up-kicks for easy and secure tubeless installation.
- 6066-T6 (+34% tensile strength vs 6061-T6) heat-treated aluminium alloy
- Asymmetric to balance spoke tensions.
- Disc-specific tubeless-ready profile.
- 29mm outer and 25mm inner width ideal for 35-50mm+ tyre widths.
- 19mm depth
- Matt black anodized finish with laser etched graphics for excellent durability.
Spokes
- J-bend cold drawn.
- Made from high grade T302 (18/10) stainless steel wire by Sandvik Sweden.
- Triple butted 2.0-1.6-2.0 (then 2.2 at the head for the patented Pillar Spoke Re-enforcement).
- 28 spokes laced 2 cross front and rear.
- Black stainless treatment.
Nipples
- Brass for anti-corrosion resistance.
- Square body for external adjustment and hex head for easy internal adjustment/tensioning.
- 12mm length.
- 14 gauge.
- Black finish
Tyres Info
- Maximum tyre pressure for this rim: 35mm do not exceed 50psi, 45mm do not exceed 45psi, 45mm+ do not exceed 40psi.
- The maximum pressure of your tyre may be lower than the maximum pressure for the rim - never exceed the maximum pressure written on the side of your tyre.
- Suitable for tyres from 35mm to 65mm wide (always check compatibility with your tire manufacturer).
- Suitable tubeless road, gravel and CX tyres are available from a huge range of companies.
Axle Size
- These wheels are available with all existing disc brake road bike axle adapter sizes. All our axle adapters are easy to swap but we'll fit the adapters your bike needs to save you the work. After your order checkout is completed a simple form will show, as well as being sent to you in your confirmation email. The form allows you to select the axle size your bike needs, don't worry it also includes the option to tell us your bike model and we will find out and then fit the correct axles, plus we're happy to change them later at our cost if you don't quite get it right. Please note; this form is shown after you have completed your order. Please click on the Front Hub and Rear Hub tabs to see which sizes are available.
Front Hub
- We fit the axles you need, just complete the simple form shown after checkout:
- All existing road/CX disc front axle standards are available including:
- Quick Release (Quick release skewers included)
- 12mm Bolt Thru
- 15mm Bolt Thru
- 9mm Bolt Thru (uncommon)
- All axle adapters are also available separately.
- Forged and CNC’d 6061-T6 heat treated aluminium alloy body.
- 7075-T6 aluminium alloy axles.
- Centre-lock disc mount. If you require a 6 bolt adaptor you can purchase separately here
- Polished anodized black finish with laser graphics.
Rear Hub
- We fit the axles you need, just complete the simple form shown after checkout.
- All existing road/CX disc rear axle standards are available including:
- Quick Release (Quick release skewers included)
- 12x142 Bolt Thru
- 12x135 Bolt Thru (uncommon)
- 10x135 Bolt Thru (uncommon)
- All axle adapters are also available separately.
- 7075-T6 heat-treated aluminium alloy freehub body.
- H_CERAMIK freehub body reinforcement coating provides excellent durability and protects against cassette sprocket damage to the freehub often seen on standard alloy freehub bodies.
- 4 pawl, 36 tooth FastEngage freehub, with an engagement angle of just 10 degrees
- All freehub standards accounted for, including:
- Shimano/SRAM
- Campagnolo
- SRAM XD Driver
- SRAM XDR Driver
- Forged and CNC’d 6061-T6 heat treated aluminium alloy body.
- 7075-T6 aluminium alloy axles.
- Centre-lock disc mount. If you require a 6 bolt adaptor you can purchase separately here
- Polished anodized black finish with laser graphics.
Bearings
- Super smooth precision bearings with proprietary waterproof grease specially selected for even the worst weather.
- Sealed cartridge replaceable units.
- Dual full-contact seals.
Warranty, HUNT Rolling Road Tests & Weight Limits
A full 3 years from purchase date warranty is offered to the original purchaser only on all Hunt bike wheels against material or workmanship defects, please click here to read full details.
All HUNT wheels models have to pass our harsh cobbled-rolling-road tests for rider weight limits, please see here for more details. Max system weight 135kg (system weight – total weight of fully kitted up rider, bike and luggage). If a rider is over 115kgs then an experienced bike mechanic should check the wheel regularly and it is advisable to use minimum 30mm tyres at max 70psi as this will reduce the fatigue on the wheelset. We are cyclists ourselves and do of course go above and beyond to offer excellent service if you ever do experience any issues. We carry full spares at very reasonable prices and offer complete support.
60 Day Ride & Return Period. We are certain you'll be impressed by the acceleration, low-weight, speed and durability of our wheels. We are cyclists and as such strive to offer class leading service and support. Buy with confidence, if for any reason you wish to return the wheels for a full refund of your order you can do so up to a full 60 days after you receive them whether they have been ridden or not. Please note we cannot offer refunds on wheels that have suffered from crash damage but do offer a crash replacement discount.
Reviews
Bike Magazine and Website Experts' Views
![]() |
Road.cc 9/10"For me, Hunt has hit the sweet spot in the middle of the 650b wheelset Venn diagram covering price, support and performance." |
In the Box
Contents
- HUNT Black Shield tubeless tape fitted to wheels.
- The axle adapters needed for your bike, just fill in the simple form shown after order completion, the form is also included in your order confirmation page.
- Cassette spacer for 8/9/10 speed
- Tubeless Valves
- Spare of each spoke plus nipples
- Quality control card signed by your wheel builder
THE SECOND IN A LINE OF MASON X HUNT COLLABORATIVE EFFORTS. THE GO-TO 650B/27.5" WHEELS FOR YOUR GRAVEL/BIKEPACKING RIG
19 Deep | 29 Wide Ext | 25 Wide Int | 1594g
The Purpose
The second MASON x HUNT collaboration, bringing go-anywhere capabilities to bikes like the fast, fun and highly-versatile MasonCycles.cc Bokeh. The new breed of Adventure Sport focused bikes have the ability and attitude for those fun trail thrashes and bike-packing adventures, whilst not compromising anything for fast-far road days. Read More
The opportunity to open up your riding comes from bikes which have geometry designed to ride excellently with both 700c or 27.5" (650b) wheels. This combination works thanks to the extra volume in a 2" x 27.5" tyre, providing an almost identical external tyre diameter to a normal road sized 700c wheel with a 33mm tyre, leaving the bike geo unchanged. What was needed was a bike that could accommodate the extra tyre width, while still running road groupsets, geo and components. That is exactly what Mason have created, and perfected with their incredible eye-for-detail.
We’re delighted to have designed the wheels for the job. These wheels will perfectly compliment other gravel bikes with dual 650b/700c compatibility. Oh, and if you are looking for a 700c wheelset for your drop bar adventure/go-anywhere bike, then our 4 SEASON GRAVEL DISC would be well worth a look. Read Less
Key Features
Smaller Wheels, Bigger Tyres, More Opportunities
- Rims | Super-wide (29mm external, 25mm internal) 6066-T6 (+34% tensile strength vs 6061-T6) Heat treated. Disc specific. Asymmetric for balanced spoke tensions and a highly-durable wheel build. ETRTO 584x25.
- Tyres | Tubeless-ready for lower weight & rolling resistance, featuring H_LOCK bead-seat for easy and secure tubeless installation. Also works excellently with clincher tyres and tubes.
- Hubs | HUNT 4 Season Disc J-bend spoke hubs with extra bearing shielding. 10 degree FastEngage 4-pawl freehub, with H_CERAMIK coating for enhanced durability. SRAM XD and XDR Driver available. Centre-lock disc mount.
- Axles | Easily adaptable & we fit them for you. Fit all current axle sizes and are easy to change; Front - QR, Bolt thru 12/15/9mm, Rear - QR, Bolt thru 12x142, 12x135, 10x135.
- Hand-built | All of our wheels are built and finished by hand, inclusive of a full quality control inspection.
- Included | Tubeless tape & valves, spare spokes, axle adapters (please fill in the simple form after checkout to select your required size).
- Weight | 1594g
- See the full specs here
Please note: If you require a 6 bolt adaptor you can purchase separately here
Full Specs
Rims
- Tubeless-ready – designed to work excellently with normal clincher tyres and tubes or tubeless tyres. HUNT Black Shield tubeless rim tape and valves included.
- H_Lock bead-seat up-kicks for easy and secure tubeless installation.
- 6066-T6 (+34% tensile strength vs 6061-T6) heat-treated aluminium alloy
- Asymmetric to balance spoke tensions.
- Disc-specific tubeless-ready profile.
- 29mm outer and 25mm inner width ideal for 35-50mm+ tyre widths.
- 19mm depth
- Matt black anodized finish with laser etched graphics for excellent durability.
Spokes
- J-bend cold drawn.
- Made from high grade T302 (18/10) stainless steel wire by Sandvik Sweden.
- Triple butted 2.0-1.6-2.0 (then 2.2 at the head for the patented Pillar Spoke Re-enforcement).
- 28 spokes laced 2 cross front and rear.
- Black stainless treatment.
Nipples
- Brass for anti-corrosion resistance.
- Square body for external adjustment and hex head for easy internal adjustment/tensioning.
- 12mm length.
- 14 gauge.
- Black finish
Tyres Info
- Maximum tyre pressure for this rim: 35mm do not exceed 50psi, 45mm do not exceed 45psi, 45mm+ do not exceed 40psi.
- The maximum pressure of your tyre may be lower than the maximum pressure for the rim - never exceed the maximum pressure written on the side of your tyre.
- Suitable for tyres from 35mm to 65mm wide (always check compatibility with your tire manufacturer).
- Suitable tubeless road, gravel and CX tyres are available from a huge range of companies.
Axle Size
- These wheels are available with all existing disc brake road bike axle adapter sizes. All our axle adapters are easy to swap but we'll fit the adapters your bike needs to save you the work. After your order checkout is completed a simple form will show, as well as being sent to you in your confirmation email. The form allows you to select the axle size your bike needs, don't worry it also includes the option to tell us your bike model and we will find out and then fit the correct axles, plus we're happy to change them later at our cost if you don't quite get it right. Please note; this form is shown after you have completed your order. Please click on the Front Hub and Rear Hub tabs to see which sizes are available.
Front Hub
- We fit the axles you need, just complete the simple form shown after checkout:
- All existing road/CX disc front axle standards are available including:
- Quick Release (Quick release skewers included)
- 12mm Bolt Thru
- 15mm Bolt Thru
- 9mm Bolt Thru (uncommon)
- All axle adapters are also available separately.
- Forged and CNC’d 6061-T6 heat treated aluminium alloy body.
- 7075-T6 aluminium alloy axles.
- Centre-lock disc mount. If you require a 6 bolt adaptor you can purchase separately here
- Polished anodized black finish with laser graphics.
Rear Hub
- We fit the axles you need, just complete the simple form shown after checkout.
- All existing road/CX disc rear axle standards are available including:
- Quick Release (Quick release skewers included)
- 12x142 Bolt Thru
- 12x135 Bolt Thru (uncommon)
- 10x135 Bolt Thru (uncommon)
- All axle adapters are also available separately.
- 7075-T6 heat-treated aluminium alloy freehub body.
- H_CERAMIK freehub body reinforcement coating provides excellent durability and protects against cassette sprocket damage to the freehub often seen on standard alloy freehub bodies.
- 4 pawl, 36 tooth FastEngage freehub, with an engagement angle of just 10 degrees
- All freehub standards accounted for, including:
- Shimano/SRAM
- Campagnolo
- SRAM XD Driver
- SRAM XDR Driver
- Forged and CNC’d 6061-T6 heat treated aluminium alloy body.
- 7075-T6 aluminium alloy axles.
- Centre-lock disc mount. If you require a 6 bolt adaptor you can purchase separately here
- Polished anodized black finish with laser graphics.
Bearings
- Super smooth precision bearings with proprietary waterproof grease specially selected for even the worst weather.
- Sealed cartridge replaceable units.
- Dual full-contact seals.
Warranty, HUNT Rolling Road Tests & Weight Limits
A full 3 years from purchase date warranty is offered to the original purchaser only on all Hunt bike wheels against material or workmanship defects, please click here to read full details.
All HUNT wheels models have to pass our harsh cobbled-rolling-road tests for rider weight limits, please see here for more details. Max system weight 135kg (system weight – total weight of fully kitted up rider, bike and luggage). If a rider is over 115kgs then an experienced bike mechanic should check the wheel regularly and it is advisable to use minimum 30mm tyres at max 70psi as this will reduce the fatigue on the wheelset. We are cyclists ourselves and do of course go above and beyond to offer excellent service if you ever do experience any issues. We carry full spares at very reasonable prices and offer complete support.
60 Day Ride & Return Period. We are certain you'll be impressed by the acceleration, low-weight, speed and durability of our wheels. We are cyclists and as such strive to offer class leading service and support. Buy with confidence, if for any reason you wish to return the wheels for a full refund of your order you can do so up to a full 60 days after you receive them whether they have been ridden or not. Please note we cannot offer refunds on wheels that have suffered from crash damage but do offer a crash replacement discount.
Reviews
Bike Magazine and Website Experts' Views
![]() |
Road.cc 9/10"For me, Hunt has hit the sweet spot in the middle of the 650b wheelset Venn diagram covering price, support and performance." |
In the Box
Contents
- HUNT Black Shield tubeless tape fitted to wheels.
- The axle adapters needed for your bike, just fill in the simple form shown after order completion, the form is also included in your order confirmation page.
- Cassette spacer for 8/9/10 speed
- Tubeless Valves
- Spare of each spoke plus nipples
- Quality control card signed by your wheel builder
MASON x HUNT 650B Adventure Sport Disc Wheelset
19 Deep | 29 Wide Ext | 25 Wide Int | 1594g
Order by 3pm for Next Day Delivery*
Our wheels are in high demand, don't miss out. Order now.
*If shown in stock












PRODUCT QUESTIONS & ANSWERS
-
Hi can these wheels be converted to use 12 speed
Yes indeed, for 12 speed SRAM simply select the XD-R freehub driver, for Shimano Microspline simply add a note in the comments section as you pass through check out, If you already have a pair of wheels, let us know your order number so that we can check the hub version to make sure microspline is compatible.
-
what 650b wheelset would you recommend for a cannondale topstone carbon? front axle is 12x 110mm, and rear axle is 12x148mm and can you dish the rear wheel for cannondale AI offset(6mm)
Either our Mason X Hunt 650 ASD or our carbon 650 Adventure Carbon disc wheelsets would be a good choice for your Cannondale Topstone Carbon, our carbon wheels are a little lighter and also have a higher impact resisitance so will offer the rider a wheelset that accelerates, climbs well & is super durable- you would need to get the rear wheel dished at your local bikeshop in order to fit the AI rear end, this is a simple process that many of our riders have had done. As a note the rear is 142 x 12mm on a Topstone Carbon.
-
What are the benefits of 650B compared with 700c?
650B wheels have a smaller diameter than 700c, meaning you are able to use wider tyres (depending on your frame clearance) and these can be run at lower pressures. Wider tyres at lower pressures can offer improved traction and soak up the bumps of technical terrain. Please check to ensure your bike is compatible with both 650b and 700c.
-
Looking to run a 11 speed shimano ultegra cassette , would these be able to take it being 135 mm as for a cannondale caadx?
Yes indeed, the standard Shimano / SRAM freehub body is Shimano 9/10/11/12 speed compatible.