Hope Pro 4 Disc hubs hand built into DT Swiss GR 531 DB Rims


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Moonglu Wheelworks Handbuilt Endurance Road and Gravel Disc wheels

Hope Pro 4 6 bolt disc hubs built into DT Swiss GR 531 DB Rims

Hope's Pro 4 6 bolt disc hubs handbuilt into DT Swiss GR531 DB endurance gravel disc brake rims. We have paired the Pro 4 hub with the GR 531 DB, DT's newest tubeless compatible endurance gravel rim. With a 24mm internal width and 25mm depth the GR 531 is available in both 650b and 700c/29er sizes making it ideal for gravel bikes.

In our opinion, these wheels stack up against anything else out there in the £500 price bracket. The reliability of the Hope Pro 4 hubs paired with a hand built wheel makes these hard to beat, even compared to Hunt and Mavic wheels. 

All our DT Swiss rim equipped wheels now have the option of silver alloy Squorx Prolock spoke nipples or Sapim Double Square Secure Lock Brass in Silver or Black. All these options are compatible with DT PHR washers. The use of these nipples allows us to use a slightly longer spoke for added strength and to build the wheels from the outside, reducing tooling marks on the spoke nipple. 

Some electric bikes now come with 110x12 and 15mm thru axle front and 148x12mm thru axle rear specific frames. We can now supply these gravel wheels with BOOST specific Pro 4 hubs.

Build specification:

  • 1 x Hope Pro 4 28h Disc front hub (hub specification) 
  • 1 x Hope Pro 4 28h Disc rear hub (hub specification)
  • 56/64 x Sapim Race Stainless Steel Double Butted Spokes Black or Silver (option to upgrade to Sapim CX Ray Aero Black)
  • 2 x DT Swiss GR 531 DB Disc only rims (rim specification)
  • Built 28 or 32 hole 3 cross front and rear

Wheel Weight

  • Front Wheel - TBCg
  • Rear Wheel - TBCg
  • Total Weight - TBCg
  • Rim only - 500/535g

Hub Axle Options

Front Wheel Rear Wheel
100mm Standard Quick Release 135mm Standard Quick Release
12mm Thru Axle 142 x 12mm Thru Axle
15mm Thru Axle
110x12mm BOOST 148x12mm BOOST

Further Information

  • The rear wheel can be supplied with the following freehub body options. Shimano/SRAM 9/10/11 speed compatible alloy or stainless freehub body, SRAM XDR 12 speed road, Campagnolo 11/12 speed or SRAM XD 11/12 speed MTB.  
  • Choose between DT Squorx Alloy nipples or Sapim Double Square Secure Lock Brass Nipples in either silver or black.  
  • These rims are tubeless compatible, they will be fitted by Moonglu with 2 layers of tubeless tape.
  • For all the wheel aficionados, we build all our wheels with the hub logo lined up with the rim valve hole. A small matter, but important to those with a wheel fetish.
  • The wheel weights quoted above are genuine, complete wheels measured in the shop.
  • For further information about our wheel builds please refer to our Wheel Building FAQs.
  • Warranty Policy

Build time

Before ordering these wheels, please understand that the wheels will generally be built to order from the component parts. Items shown instock will be instock in their component parts, ready to be laced up, tensioned and trued. In most cases we can't pluck these wheels off the shelf, pack them into boxes and dispatch them, if only life was that easy. We will do our utmost to make the turnaround time as quick as possible (currently approx 2 weeks), but if you are in doubt, please Contact us first. 

Wheel Builder's Comments

Proving to be one of our most popular wheelsets both by sales and internet searches. Customers are clearly looking for handbuilt quality, strong and lightweight wheels with Hope's incredible Pro 4 hub with their multitude of colours and options. These are perfect if you prefer 6 bolt disc rotors and the reliability of 4 pawl engagement. 

Stock, Shipping and Returns

Shipping Destinations: United Kingdom only 

Returns Class: Custom

Delivery: Free in the UK

Click and Collect: Yes


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Moonglu Independent Bike Shop | 57 Blossomgate | North Yorkshire | HG4 2AN | info@moonglu.com | 01765 601106


Ask a Question
  • Hello, I’m looking for an all round gravel rim to pair with a pair of Hope Pro 4’s. The wheels will be used for fast single track, aggressive off road sections and long distance road / touring. Can you recommend a rim from DT that will be okay for all, obviously it’s an eclectic mix of disciplines but I assume there will be one better than another? I’m debating between the GR 531 and the G 540 - there’s a considerable price difference, why is this? Thanks in advance, Benjy


    Many thanks for your question. The main differences between the GR531 and G540 is the type of alloy and surface finish. The G540 is in my opinion a softer grade of alloy making it more susceptible to rim damage. It also uses a sleeve joint as opposed to a welded joint on the GR531. The welded joint is fully sealed which benefits tubeless use. The sleeve joint is tubeless compatible but I have seen leakage at the joint. The GR531 uses their premium grade of alloy seen on most of the higher end mountain bike rims and is finished with a shot peened anodized surface which is very robust. In the build itself, the GR531 makes use of internal PHR washers to spread the wheel building load and makes them less prone to spoke pull through. 

    Both will work well for your agressive trail and gravel use. I'd certainly put the GR531 as far more robust than the XC MTB rims of old. They would probably handle Enduro mtb.

    If you need any further help please don't hesitate to ask.

    Kind Regards
    For Moonglu

    Neil Dunkley
    Wheel Builder

  • Hi, Can you tell me if you build with straight pull centre-lock Pro4 hubs? Thanks, Mike


    Thanks for the message. Hope no longer make straight pull Pro 4 hubs and they don't make a CL Pro 4 either. We could however build those wheels with Hope RS4 straight pull centrelock hubs.

    Please email me at info@moonglu.com if you would like to discuss this further. 

    Kind Regards
    For Moonglu

    Neil Dunkley