

Nearly New 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
Tubeless Tyre Fitting Option
We can fit tubeless tyres (including sealant) to your wheels for free.
The wheels are also designed to work excellently with clincher tyres and tubes. See tyre fitting options here.
Maximum tyre pressure for this rim is 120psi when used with an inner tube and 100psi when running the wheel set-up tubeless. Maximum tyre pressures for other tyre sizes: 30mm do not exceed 70psi, 33mm do not exceed 50psi, 35-45mm do not exceed 40psi, 46mm+ do not exceed 35psi. 100psi is more than enough for any rider on road. Please do not exceed the maximum pressure stated on your tyre. Click here to listen to a podcast exploring the science of why lower pressures were found to be faster by pro teams.
Specs Overview
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, 6-bolt disc adaptors included.
- 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.
- Included | Tubeless tape & valves, spare spokes, spoke key,axle adapters (please fill in the simple form after checkout to select your required size), pair of 6bolt disc adps.
- See the full specs here
- Weight | 1594g
More Tech
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. Hex/square spoke key included.
- 12mm length.
- 14 gauge.
- Black finish
Tyres Info
- Maximum tyre pressure for this rim is 120psi when used with an inner tube and 100psi when running the wheel set-up tubeless. 100 psi is more than enough for any rider on road. Click here to listen to a podcast exploring the science of why lower pressures were found to be faster by pro teams.
- Maximum tyre pressures for other tyre sizes 30mm do not exceed 70psi, 33mm do not exceed 50psi, 35-45mm do not exceed 40psi, 46mm+ do not exceed 35psi.
- Please do not exceed the maximum pressure stated on your tyre.
- Suitable for tyres from 35mm wide upwards.
- Suitable tubeless road, gravel and CX tyres are available from a huge range of companies including Schwalbe, Hutchinson, Panaracer, Maxxis, WTB and many more.
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. 6 bolt disc adapter included.
- 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 RapidEngage freehub, with an engagement angle of just 5 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.
- Polished anodized black finish with laser graphics.
Bearings
- By EZO Japan.
- 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. 115kgs is the upper recommended rider weight limit for these wheels. Please include the weight of any luggage in your total rider weight when choosing the correct wheels. If a rider is over 105Kgs 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.
Tubeless Tyre Fitting Options
These are only some of the options you can have fitted on your wheels. To see the full range, click here
![]() |
Schwalbe G-One Allround Tubeless Tyres - 650B x 1.5"The Schwalbe Tubeless tyres consistently win plaudits from journalists and customers alike. We have been testing them for a long time and have been very impressed. The G-One's are Schwalbe's brand new gravel tyre, designed to offer a low rolling resistance yet offer plenty of grip on gravel and dirt tracks. |
![]() |
WTB Byway TCS Tubeless Tyres 650B X 47mmThe Byway Road Plus tyre brings supple plus-size traction and smooth riding characteristics even further into the dirt track. A smooth centerline and intermediate, diamon-shaped peaks provide great traction under power, while the more substantial side knobs protect the tyre from rocks or gashes. |
![]() |
WTB Horizon Tubeless Tyres - 650B x 47mmThe Horizon Road Plus tyre brings supple plus-size traction and smooth riding characteristics beyond where the pavement ends. A smooth centerline and all-weather herringbone pattern with cornering channels make anything possible. |
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
- HUNT spoke key for hex and square fitment
- Pair 6 bolt disc adapters
- 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
Tubeless Tyre Fitting Option
We can fit tubeless tyres (including sealant) to your wheels for free.
The wheels are also designed to work excellently with clincher tyres and tubes. See tyre fitting options here.
Maximum tyre pressure for this rim is 120psi when used with an inner tube and 100psi when running the wheel set-up tubeless. Maximum tyre pressures for other tyre sizes: 30mm do not exceed 70psi, 33mm do not exceed 50psi, 35-45mm do not exceed 40psi, 46mm+ do not exceed 35psi. 100psi is more than enough for any rider on road. Please do not exceed the maximum pressure stated on your tyre. Click here to listen to a podcast exploring the science of why lower pressures were found to be faster by pro teams.
Specs Overview
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, 6-bolt disc adaptors included.
- 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.
- Included | Tubeless tape & valves, spare spokes, spoke key,axle adapters (please fill in the simple form after checkout to select your required size), pair of 6bolt disc adps.
- See the full specs here
- Weight | 1594g
More Tech
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. Hex/square spoke key included.
- 12mm length.
- 14 gauge.
- Black finish
Tyres Info
- Maximum tyre pressure for this rim is 120psi when used with an inner tube and 100psi when running the wheel set-up tubeless. 100 psi is more than enough for any rider on road. Click here to listen to a podcast exploring the science of why lower pressures were found to be faster by pro teams.
- Maximum tyre pressures for other tyre sizes 30mm do not exceed 70psi, 33mm do not exceed 50psi, 35-45mm do not exceed 40psi, 46mm+ do not exceed 35psi.
- Please do not exceed the maximum pressure stated on your tyre.
- Suitable for tyres from 35mm wide upwards.
- Suitable tubeless road, gravel and CX tyres are available from a huge range of companies including Schwalbe, Hutchinson, Panaracer, Maxxis, WTB and many more.
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. 6 bolt disc adapter included.
- 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 RapidEngage freehub, with an engagement angle of just 5 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.
- Polished anodized black finish with laser graphics.
Bearings
- By EZO Japan.
- 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. 115kgs is the upper recommended rider weight limit for these wheels. Please include the weight of any luggage in your total rider weight when choosing the correct wheels. If a rider is over 105Kgs 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.
Tubeless Tyre Fitting Options
These are only some of the options you can have fitted on your wheels. To see the full range, click here
![]() |
Schwalbe G-One Allround Tubeless Tyres - 650B x 1.5"The Schwalbe Tubeless tyres consistently win plaudits from journalists and customers alike. We have been testing them for a long time and have been very impressed. The G-One's are Schwalbe's brand new gravel tyre, designed to offer a low rolling resistance yet offer plenty of grip on gravel and dirt tracks. |
![]() |
WTB Byway TCS Tubeless Tyres 650B X 47mmThe Byway Road Plus tyre brings supple plus-size traction and smooth riding characteristics even further into the dirt track. A smooth centerline and intermediate, diamon-shaped peaks provide great traction under power, while the more substantial side knobs protect the tyre from rocks or gashes. |
![]() |
WTB Horizon Tubeless Tyres - 650B x 47mmThe Horizon Road Plus tyre brings supple plus-size traction and smooth riding characteristics beyond where the pavement ends. A smooth centerline and all-weather herringbone pattern with cornering channels make anything possible. |
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
- HUNT spoke key for hex and square fitment
- Pair 6 bolt disc adapters
- Spare of each spoke plus nipples
- Quality control card signed by your wheel builder
Nearly New MASON x HUNT 650B Adventure Sport Disc Wheelset
19 Deep | 29 Wide Ext | 25 Wide Int | 1594g
FREE World-wide shipping on wheels
Order by 3pm for Next Day delivery** (if shown in-stock)
60 day ride & return period
Please don't miss out, order now. Our wheels are in high demand due to their unique superior specifications and excellent reviews. Please be aware that we are working hard to meet demand. Unfortunately sales often outstrip supply, so please order now to avoid disappointment.
*UK if shown in-stock, International orders 2-7 days. Please allow 3 working days for tyre fitting if required.











