Classic Dutch Bikes

WorkCycles Secret Service Diamond Frame

The timeless design of a traditional men’s ‘diamond frame’. Ideal for those who need a solid city bike that can also function as a commuter bike. It’s the lightest bike we build. A tough and stealthily modern Dutch city bike that blends into the crowd. Compared to our extraordinarily robust traditional models the Secret Service is a little tighter and lighter. It's ideal both for those who cover some distance or ride in more varied terrain. The Secret Service bikes have more of a svelte look with thinner fenders and tires compared to the other classic bikes. The frame-fixed front carrier doesn't turn with the handlebars meaning that this classic bike steers nicely even when heavily loaded.

The Secret Service is smooth rolling, solid handling and like all WorkCycles bicycles it comes totally equipped to ride daily, in all-weather conditions. Standard finish is matte black, super-tough powder-coat, all hardware and many parts are stainless steel and everything is rock-solid to provide many years of reliable... service. The Secret Service comes standard with a Brooks saddle and a modern looking chain case. The bike is suited for around town riding, grocery shopping and commuting but also for longer rides and perhaps the odd weekend trip.

1.239,001.439,00 incl. VAT

WorkCycles Secret Service options

WorkCycles Secret Service options

  • Tyre valve *

    DV are Dunlop valves on the inner tubes of your tires and AV are auto or 'Schrader' valves. Most cyclists in Europe will want DV valves and the majority of North Amercian cyclists will find it handier to have AV valves. Both valve types work equally well.

  • The saddle cable is a coated steel cable that loops through the saddle rail and part of the bicycle frame. It’s a security measure to prevent theft of your saddle and seatpost.

Product total

Options total

Grand total (incl. VAT)

Description

WorkCycles Secret Diamond Frame

Steel frames

Lugs and large diameter tubing make them much stiffer and stronger than frames from other manufacturers. They’re built to handle heavy loads and constant use. Frames are coated first with an anti-rust zinc carbonate primer and then a tough and environmentally friendly powder-coat. Your choice of standard matte black (all painted parts), matte army green or gloss anthracite blue. The WorkCycles Secret Service Diamond Frame bike have more of a svelte look compared to other classic bikes, with thinner fenders and tires. They are the lightest bikes of the classic bike series (2 kg lighter than the Opa) and have a slightly forward leaning riding position.

Fully enclosed chain-case and fenders

No dirty trousers/skirts and almost no drivetrain maintenance. The mudguards are zinc and powder-coated steel so they won’t break or rust. The full chain case keeps your drivetrain clean to reduce maintenance to a minimum. A hatch on the rear makes the occasional lubrication and chain tension adjustment easy.

Internal hub gears

All WorkCycles bikes have fully enclosed hub gears, mostly from Shimano: foolproof shifting, nearly maintenance free and out of harm’s way. You can even shift while stopped, a very handy feature when riding for transportation.

Hub brakes on both wheels

All models have a front Shimano roller brake and either a backpedal or (hand operated) roller rear brake. Hub brakes are nearly maintenance free, unaffected by weather and don’t make the bike dirty with brake pad sludge. WorkCycles fits the top of the line Shimano C-6000 roller brakes. Though many Dutch bicycles have only a rear coaster brake we feel strongly that a bicycle with two brakes is both safer and more convenient.

Hub dynamo powered LED lighting

Bright lights whenever needed without the hassle of batteries. The dynamo is inside the front hub so it runs silently with negligible resistance. Headlamps come from B&M in Germany and have powerful LED’s. The tail lamps have LEDs with a 100,000 hour lifespan and energy storage circuitry to remain on for a few minutes while stopped. Double wiring is routed internally though the frame and mudguard stays for reliability and clean looks. The headlamp can be upgraded to 50 lux with stand-light function.

Heavy duty 28” wheels

Special wide, double-wall, black, aluminum rims are made here in the Netherlands just for WorkCycles. These tough rims are laced with (thick) 2.3mm stainless spokes bent to precisely fit the hub. These wheels are so durable that they put those of other city bikes to shame. The tires are smooth rolling and long wearing Schwalbe Marathons with Kevlar anti-puncture layers.

DV or AV

DV are Dunlop valves on the inner tubes of your tires and AV are auto or ’Schrader; valves. Most cyclists in Europe will want DV valves and the majority of North American cyclists will find it handier to have AV valves. Both valve types work equally well.

Rear wheel lock

The integrated lock immobilizes the rear wheel. This won’t prevent the bike from being carried away but when combined with a chain or U-lock it’s a very complete locking system. For those fortunate enough to live in a low-theft area the ring lock is adequate on its own.

Brooks saddle

Brooks traditional leather bicycle saddles have been around for over 100 years and are still made in the UK. When you first receive a Brooks B67 or B67s saddle the leather is hard for around the first three months, after that it is quite comfortable. The leather slowly softens and forms to the shape of your sit bones. Brooks saddles are not for the heavier rider though, we recommend a rider weight guideline of around 80 kg maximum. You need to care for them as well, treat the topside with Proofide every 6-12 months and keep the underside dry. If possible store the bike in a dry place between rides so that the leather can dry out naturally. Use the saddle cover when the bike is parked outside in bad weather and remove the saddle cover when you ride the bike. Tension the leather when necessary, if the leather is touching the saddle rail it needs to be tightened. We sell a complete saddle care kit. If you prefer not to have a Brooks on your Secret Service you can swap it out for a Selle Royal Ondina or Lookin saddle.

Stainless steel parts and hardware

The handlebar, stem, spokes and almost all of the nuts, bolts and washers will remain serviceable and pretty for years… even when stored outdoors in a rainy climate (like Amsterdam).

Stable and strong centerstand

We find the combination of this stable, 2-leg center-stand, steering limiter spring and the headlamp mounted on the left fork leg to be much handier than the more typical side-stand. The bike stands upright which is great when loading the front carrier and even with loaded panniers or front carrier the bike stands reliably.

 

WorkCycles Secret Service Diamond Frame Options

Frame mounted front carrier

This incredibly handy rack is fixed to the frame so it can carry huge loads without influencing your bike’s handling. Your bike remains stable when parked as well. Once trying a bike with a frame-mounted front carrier you won’t ever want to ride a bike with a load that swings around with the front handlebar. It can be removed with a single bolt, but once you’ve used this carrier you won’t understand how you ever lived without it. Most WorkCycles riders choose to semi-permanently attach a crate to their front carrier.

MT Crate & Crate mat

This is the WorkCycles crate, measuring 50 x 30 x 20cm it’s perfect fit for your frame mounted front carrier. Just drop your grocery bags, backpack, briefcase, kids toys in and go. The additional MT Crate mat functions as anti-noise mat, locks and groceries don't rattle around anymore.

Brooks grips

We sell the Brooks Plump, Slender and Cambium Comfort grips. Plump (Thick) and Slender (Thin) are traditional leather grips that match nicely with your leather saddle. The Cambium Comfort grips are modern rubber handlebar grips with organic cotton for a natural look and feel.

Selle Royal Ondina or Lookin saddle

Brooks leather saddles are not for everybody and if you’d like a Secret Service bike, but would prefer a no-fuss saddle then you can choose an Ondina or Lookin saddle from Selle Royal. The Ondina is out most sold saddle, it’s practical and perfect for around town riding. If you spend quite a bit of time on your bike on go on longer rides then you’ll appreciate the Lookin as it’s more comfortable than the Ondina. The Ondina and Lookin and both synthetic saddles and retain their shape.

 

Have more questions? Find answers here!

Additional information

Frame material

Steel frame with Zinc carbonate primer and wear resistant powdercoat

Max load capacity

Around 145kg

Front carrier

Optional, max load 15kg

Rear carrier

Postal rear carrier with elastic straps, max load 40kg

Electric assisted

No

Front brake

Front: Shimano C-6000 roller brake / Rear: Shimano C-6000 roller brake or coaster brake

Gears

xx-NC-G3/xx-NN-G3 - Shimano Nexus 3, xx-NC-G8/xx-NN-G8/xx-SS-G8 - Shimano Nexus 8

Wheel size

28" / 622mm, Ryde double wall aluminium rims

Tires

Schawalbe Marathon 37-622mm with puncture resistantant layer

Spokes

13g Stainless Steel

Hub Dynamo

Shimano DH-C6000-2R for rollerbrake bike

Headlamp

Busch & Müller Avy N Plus 40 lux

Tail light

LED with standlight function

Lock

Axa Solid Plus - frame mounted rear wheel lock

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