The DT Swiss RR521 wheelset is for riding far and wide. It built for heavy riders or heavier riders going bike packing or touring. Please note the hubs in the photo are different to what we currently using.
The rim is 32mm deep which i suppose makes it a bit aero but it is also radially stiff and able to handle high loads.
The rim has an internal width is 20mm making it ideal for tyres 28mm to 40mm wide.
Highlight
- Centrelock Bitex BX108 hubs
- 24mm wide tubeless ready wheelset (tubed tyre compatible also).
- 32 spoke count.
- Thru axle and Q/R compatibiliaty
- 100*12/100*15/142*12mm or 100/135mm QR compatible.
- Shimano 8/9/10/11speed, XDR 12 speed driver, Campagnolo 9/10/11/12 speed freehub or Campagnolo N3W 13 speed freehub.
- Sapim triple butted black spokes and brass nipples.
- Hand built in the shop.
- 10,000mile/16,000km warranty against spoke failure and other fatigue failure's.
- Centrelock disc brake mounts.6 bolt adapter available here.
- Lockring for 15mm axled hubs must be used. Centrelock rotor lockring available here.
6 bolt adapters are avilable seperatley if required.
Freehub bodies for
- Shimano 8/9/10/11speed
- XDR 12 speed driver
- Campagnolo 9/10/11/12 speed freehub
- Campagnolo N3W 13 speed freehub.
are available and are interchangeable.
The freehub has 6 pawls and a 54T ratchet ring (2 groups of three). It is advisable to re-grease the freehub mechanism with good grease like Rock n Roll Super Web to keep the hub quiet and to stop water ingress weakening the spring.
They are a large flange design because large flange hub reduces the braking loads on the spokes compared to small flange designs. The front hub has 2x 6902 bearings and the rear hub has 2x 6902. The freehub body has 1x 6902 and 1x NTN 6802 LLB for shimano and 2x 6803 bearing for Campagnolo, XDR and N3W freehubs .
The spoke and nipples are the last trick. Black Sapim Force triple butted 2.0/1.8/2.2mm (at the elbow where it matters) give long service life. The elbow being 2.2mm in diameter has 21% more cross-sectional area than a Sapim race or DT Swiss Competition spokes. What is not to like about that? The nipples used are silver Sapim brass nipples.
So, in short, this wheelset uses all the tricks I know to create a stiff reasonably light but robust wheelset that will give you smiles for miles. I deploy all the tricks as tubeless tyres compress tubeless compatible rims (tight fitting standard clinchers do too) and this cause a significant tension drop that must be accounted for when building the wheel. I cannot raise the tension as some tyres cause a bigger drop than others. So tricks to improve tension balance and extend spoke life are a better way of creating a reliable wheel for all riders regardless of the tyres they choose to fit.
Weight 1900g. Its not light but it's not meant to be.
What you get
- 32F/32R wheelset with black triple butted spokes and brass nipples
- Q/R or 142x12mm/100x12/15mm in any combination
- Silver brass tubeless valves and tubeless tape is supplied.
- 5 year or 10,000 miles guarantee against spoke failure (anything reasonable covered too). The rims won't wear out so I can't do a guarantee for the life of the rim that might be a very long time.
See my notes on how to avoid freehub body notching.
The Cycle Clinic is a stockist/importer of IRC tubeless and clincher (tubed) tyres. You can opt for any IRC tyres to be fitted to your wheels. Other brands are stocked too, and if you buy tyres of this shop I will fit them and set them up with Maxalami Sealant. Please note if you buy tubed tyres buy tubes also. Below are links to the tubeless tyres and IRC tubed tyres stocked.
Continental GP5000TL 25mm, 28mm or 32mm
IRC Roadlite tubeless 23mm and 25mm
IRC Formula Pro RBCC TL tubeless 25mm, 28mm or 30mm
IRC Formula Pro X-guard TL tubeless 25mm, 28mm or 30mm
IRC Formula Pro S- Light TLR tubeless ready tyre 25mm or 28mm
IRC Marbella tubeless X Guard 28mm gravel tyre
IRC Serac CX Sand and CX Sand X Guard tyres 32mm width
IRC Serac CX and CX X Guard tyres 32mm width
IRC Serac CX Mud and CX Mud X Guard tyres 32mm width
IRC Aspite RBCC clincher 24mm or 26mm (for use with inner tubes)
IRC Roadlite X guard 25 mm tyres (for use with tubes).
IRC Jetty 23mm, 25mm or 28mm (for use with inner tubes)
Veloflex Corsa EVO TLR Orange seal will be used for cotton casing tubeless tyres
Veloflex Corsa Race TLR Orange seal will be used for cotton casing tubeless tyres
If you buy any tyre (with tubes if applicable) I will fit them for you to your wheels.
Other thing to buy with this wheelset
COVID 19 update. Overseas shipping is now with a courier only. UPS or Parcel force.
U.K policy
Orders placed in the afternoon normally get sent the next workday where possible. Orders placed before noon are often sent the same day but this is not guaranteed.
Same day disptach is not guaranteed due to volume of mail order. In general we are not operating with big delays in dispatch if any.
- Standard shipping is with DHL. Cost is £6.00 . Fully tracked with hour delivery slots.
- Some U.K addresses excluded from he DPD service Royal Mail is used (1st class tracked). Checkout is not sophisicated enough to know all the excluded postcodes. The areas are Channel Islands, Isle of Wight, Isle of Man Scottlish Highlands and islands (Scottish Highlands - AB31-38, AB40-56, FK17-21, IV1-40, IV52-54, IV63, KW1-14, PA21-38, PH4-41, PH49-50
Scottish Islands - HS IV41-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3)
- Northen Island - Ropyal mail 1 st class signed for is used.
- Rims are sent by courier only- cost £10. UPS is used. A phone number and email address must be supplied to allow me to book in. This service can also be picked for smaller items that you want delivered by UPS.
- Wheels shipping cost is £20 (cost of courier + cost of the box) next day. To NI, Scottish Islands, Channel Islands, Isle of Man and that is a two day service.
Overseas
Courier services are used only or over seas mail. UPS or parcel force depending on destination.
The website will provide shipping rates at checkout.
The import charges you will face are and these will be levied by the shipping carrier or by your customs authority in advance of delivery. Customs clearance will add to shipping times.
You will be billed for
Import duties which are set by the tarrif code we declare. Tarrif rates are normally published on government websites. "Free trade agreements" affect this and for EU customers there are no duties as tarrifs are set at zero for goods like our wheels that originate in the U.K. Goods that originate in the E.U and are exported back yo the E.U attract tarriffs. Good made outside the e.u and sold into the E.U attract tarrifs. The declared value in GDP will be converted to your countries currency by the monthly rate published by your tax authority.
Customs clearance fees -these vary from country to country and also vary by declared value in some juristictions.
VAT or sales taxes and applied to the total of the declared value of goods, customs clearance charges and import duties.
This shop declares the total paid for the goods for customs value, no exceptions. We will not declare low values as thats fraud and we will not be party to it.
A word of warning once an parcel has been shipped any import charges are your reponsibility. Refusal to pay these charges to the parcel carrier mean you loose the right to an automatic refund. We refund at our discretion minus any charges we are levied by the parcel carrier. These charges cannot be disputed by us. We also reserve the right to apply a 10% restocking fee on top of any charges applied to us for the return of the parcel. Therefore once shipped charges must be paid. We can accept no liability if the parcel is lost after charges have been refused to be paid.
