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The Marin DSX E is a modern, flat-bar gravel bike built for the ride you didn't plan, featuring a Bosch SX motor and a Series 4 aluminium frame.
The Marin DSX E is a modern, flat-bar gravel bike built for the ride you didn't plan, featuring a Bosch SX motor and a Series 4 aluminium frame.
Marin

Marin DSX E in Dark Blue

£3,399.00
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Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Returns policy

Please read and fully understand this policy before returning goods to us. With exception of Warranty Claims, Faulty or Damaged goods (See terms below), we can only accept a return on an item if it is completely unused and in its original condition.

  1. Please pack the item carefully in its original packaging.
  2. Submit a returns form using the retuns form at the bottom of the page.
  3. Fully complete the returns slip and include it in the package.
  4. Send the parcel on a through postal/courier service to the returns address.

Returns Address

Bike Bros. Returns
23-25 Woodbridge Hill
Guildford, Surrey
GU2 9AA

Returns & Exchanges Policy Summary

We offer a 30 day returns period from the date of receipt.

Distance Selling
In addition to our Returns Policy, under the Consumer Contracts Regulations, you have the right to cancel your order up to 14 days from the day you receive your goods if you are an online, mail or telephone order customer. You then have a further 14 days from the date you notify the retailer of your cancellation to return the goods.

Faulty Goods:
Under the Consumer Rights Act you have an early right to reject goods that are unsatisfactory quality, unfit for purpose or not as described, and get a full refund. But this right is limited to 30 days from the date you took ownership of the goods (this could be the date of purchase or the date the goods were delivered to you - whichever is later).

It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel.

We are unable to accept returns where the goods or packaging has been used, lost, damaged or is otherwise not in the condition you received it in. Bikes must be returned in a securely packaged bike box.

If you would like us to arrange a collection via courier, then we can do so at a cost of £50. Should you fail to be present for an arranged collection, you will be charged £20 to rebook.

We will refund up to £10 for private postage of faulty or damaged items.

If you would like to exchange an item, we will happily send out a replacement product once the original has been returned.

Refunds will be made to the original payment method - this may take up to 10 days to appear depending on the method of payment. Initial shipping costs are non-refundable.

We are unable to offer a refund without proof of purchase.

We cannot accept returns without a completed returns form.

Signing for delivery receipt of items that have clearly been damaged by the courier is the responsibility of the receiver.

Items that are damaged during a return as a result of inadequate packaging will be declined and returned to you, or charged for.

Several types of goods are exempt from being returned. Perishable goods cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:
* Gift cards
* Downloadable software products
* Some health and personal care items

Faulty Goods and Warranties

If the item that has been received is faulty, damaged, or not as described then we will cover the cost of return postage (up to £10) and offer a refund or exchange. In these instances, we would always recommend using our own shipping services.

Important information to note about returning faulty, damaged, or not as described items:

Bike Bros. issue no warranties, all warranties are issued by manufacturers. For this reason, we may need to send your goods to the manufacturer for inspection before taking any action. Please see the relevant manufacturer's website for full warranty information.

Only products that are faulty, damaged or not as described by us are eligible for returns/exchanges. If damage has been caused through wear and tear, improper care, or some other factor beyond our control then it will not be covered.

Once a faulty item has been used, or if the packaging has been damaged it can still be returned to us, however we - and the manufacturer - reserve the right to offer a repair, replacement, or partial refund.

Remember it is your responsibility to ensure that returned items are packaged appropriately - any damage caused in transit [as a result of inadequate packaging] will be chargeable.

We cannot accept any cycle warranty claim or return for incorrect pedal fitment or damage to crank arms caused by incorrect pedal fitment.

If the wheels on the bike you've ordered become untrue through use, or the gears need readjustment after initial use, this unfortunately not covered under warranty. Every new bike requires a 4-6 weeks check up, this is provided by us free of charge, provided the bike is dropped off and booked in the workshop with us.

Please read and fully understand this policy before returning goods to us. With exception of Warranty Claims, Faulty or Damaged goods (See terms below), we can only accept a return on an item if it is completely unused and in its original condition.

  1. Please pack the item carefully in its original packaging.
  2. Download and Print the returns slip.
  3. Fully complete the returns slip and include it in the package.
  4. Send the parcel on a through postal/courier service to the returns address.

Returns Address

Bike Bros. Returns
23-25 Woodbridge Hill
Guildford, Surrey
GU2 9AA

Returns & Exchanges Policy Summary

We offer a 30 day returns period from the date of receipt.

It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel.

We are unable to accept returns where the goods or packaging has been used, lost, damaged or is otherwise not in the condition you received it in. Bikes must be returned in a securely packaged bike box.

If you would like us to arrange a collection via courier, then we can do so at a cost of £50. Should you fail to be present for an arranged collection, you will be charged £20 to rebook.

We will refund up to £10 for private postage of faulty or damaged items.

If you would like to exchange an item, we will happily send out a replacement product once the original has been returned.

Refunds will be made to the original payment method - this may take up to 10 days to appear depending on the method of payment. Initial shipping costs are non-refundable.

We are unable to offer a refund without proof of purchase.

We cannot accept returns without a completed returns form.

Signing for delivery receipt of items that have clearly been damaged by the courier is the responsibility of the receiver.

Items that are damaged during a return as a result of inadequate packaging will be declined and returned to you, or charged for.

Several types of goods are exempt from being returned. Perishable goods cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:
* Gift cards
* Downloadable software products
* Some health and personal care items


Faulty Goods and Warranties

If the item that has been received is faulty, damaged, or not as described then we will cover the cost of return postage (up to £10) and offer a refund or exchange. In these instances, we would always recommend using our own shipping services.

Important information to note about returning faulty, damaged, or not as described items:

Bike Bros. issue no warranties, all warranties are issued by manufacturers. For this reason, we may need to send your goods to the manufacturer for inspection before taking any action. Please see the relevant manufacturer's website for full warranty information.

Only products that are faulty, damaged or not as described by us are eligible for returns/exchanges. If damage has been caused through wear and tear, improper care, or some other factor beyond our control then it will not be covered.

Once a faulty item has been used, or if the packaging has been damaged it can still be returned to us, however we - and the manufacturer - reserve the right to offer a repair, replacement, or partial refund.

Remember it is your responsibility to ensure that returned items are packaged appropriately - any damage caused in transit [as a result of inadequate packaging] will be chargeable.

We cannot accept any cycle warranty claim or return for incorrect pedal fitment or damage to crank arms caused by incorrect pedal fitment.

If the wheels on the bike you've ordered become untrue through use, or the gears need readjustment after initial use, this unfortunately not covered under warranty. Every new bike requires a 4-6 weeks check up, this is provided by us free of charge, provided the bike is dropped off and booked in the workshop with us.

Marin DSX E in Dark Blue

Season:2026

Brand:Marin

Code:7407010DBLU

The Marin DSX E is built for the ride you didn't plan.

The DSX E doesn't pick a surface and neither should you. The Bosch SX Sprint motor has smooth assist, working with rather than instead of the rider. Expert engineering makes the Series 4 aluminium frame a smooth operator. Shimano Deore 12-speed gearing beats any gradient the motor doesn't. Vee Tire Quikstyk rubber is wide, tubeless-ready and confident on any surface. A dropper seatpost sorts the descents. Rack and fender mounts are the bike's ace in the hole.

The DSX is the mountain biker's gravel bike, offering familiar hand positioning for comfort and confidence. Taking inspiration from the Gestalt X drop bar line, the DSX is made to feel like an MTB but still cut it on all of those adventures that would normally demand curly bars. It is perfect for racking up road miles, daily grinds to work, multi-day epics and flowy singletrack.

Features:

  • Shimano 1 x 12 Speed Drivetrain
  • TransX Dropper Post
  • Bosch SX Power Unit and 400w/h Powertube
  • Tektro Hydraulic Disc Brakes
Technical Information
  • Range
    14-85 miles / 22-137km
  • Display
    Bosch Purion 400
  • Switch
    Bosch MiniRemote, Bluetooth
  • Battery
    Bosch Compact Power Tube 400, 400Wh
  • Motor
    Bosch SX, 250W, 55Nm, 25km/h
  • Fork
    Marin Full Carbon, tapered steerer, 12mm thru-axle, flat-mount disc, fender eyelets
  • Frame
    Series 4, 6061 aluminium, hydroformed, internal cable routing, mudguard and rack mounts, flat mount disc, 142x12mm thru-axle
  • Rim
    Marin aluminium double wall, 25mm inner, 18mm tall, disc specific, tubeless compatible
  • Hub Rear
    Forged aluminium alloy, 142x12mm, disc, 32H
  • Hub Front
    Forged aluminium alloy, 100x12mm, disc, 32H
  • Spokes
    14g black stainless steel
  • Tires
    Vee Tire Co. QuikStyk, 700x45, folding bead, tubeless compatible
  • Derailleur Rear
    Shimano Deore RD6100, 12-speed
  • Shift Lever
    Shimano Deore SLM6100, 12-speed
  • Crankset
    Forged aluminium, 42T steel narrow wide chainring
  • Bottom Bracket
    Sealed outboard bearing
  • Chain
    KMC X12
  • Cassette
    Shimano Deore CSM6100, 12-speed, 10-51T
  • Brakes
    Tektro HD-R3020, flat-mount hydraulic disc, 160mm rotor
  • Brake Levers
    Tektro Clean Cockpit
  • Handlebar
    Marin MiniRiser
  • Stem
    Marin 3D forged alloy
  • Grips
    Marin MTB
  • Headset
    FSA No.42 ACB, sealed cartridge bearings, 1 1/8” x 1 1/2”
  • Seatpost
    TranzX YSP38J, alloy remote, 70-100mm travel
  • Saddle
    Marin DSX
  • Pedals
    Nylon platform
  • Stack
    564.7-640mm
  • Reach
    385-425mm
  • Headtube angle
    70°
  • Headtube length
    130-210mm
  • Seattube length
    460-530mm
  • Seattube angle
    73.5°
  • Toptube effective
    552.2-614.5mm
  • Bottom bracket height
    282mm
  • Bottom bracket drop
    80mm
  • Chainstay length
    435mm
  • Wheelbase
    1042.2-1110mm
  • Standover height
    686.7-741.7mm
  • Fork offset
    50mm
  • Seatpost diameter
    27.2mm
  • Handlebar width
    680-700mm
  • Stem length
    70mm
  • Crank length
    170-175mm
Sizing Information

 

Seatpost Travel

The DSX E features a TranzX YSP38J dropper post. The travel distance varies by frame size: Size S offers 70 mm of travel, while all other sizes offer 100 mm of travel.

Geometry Small Medium Large XLarge
Stack 564.7 mm 585.5 mm 607 mm 640 mm
Reach 385 mm 405 mm 415 mm 425 mm
Headtube angle 70° 70° 70° 70°
Headtube length 130 mm 150 mm 175 mm 210 mm
Seattube length 460 mm 485 mm 505 mm 530 mm
Seattube angle 73.5° 73.5° 73.5° 73.5°
Toptube effective 552.2 mm 577.8 mm 595 mm 614.5 mm
Bb height 282 mm 282 mm 282 mm 282 mm
Bb drop 80 mm 80 mm 80 mm 80 mm
Chainstay 435 mm 435 mm 435 mm 435 mm
Wheelbase 1042.2 mm 1069 mm 1087.6 mm 1110 mm
Standover height 686.7 mm 702 mm 714.5 mm 741.7 mm
Fork offset 50 mm 50 mm 50 mm 50 mm
Seatpost diameter 27.2 mm 27.2 mm 27.2 mm 27.2 mm
Handlebar width 680 mm 680 mm 680 mm 700 mm
Stem length 70 mm 70 mm 70 mm 70 mm
Crank length 170 mm 170 mm 175 mm 175 mm
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