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The Wholegrain Jack is a versatile, tool-free bike rack made from solid 304 stainless steel. It attaches securely to most handlebars, supports up to 5kg, and includes all necessary straps and shims for a quick, easy setup on your commute.
The Wholegrain Jack is a versatile, tool-free bike rack made from solid 304 stainless steel. It attaches securely to most handlebars, supports up to 5kg, and includes all necessary straps and shims for a quick, easy setup on your commute.
Wholegrain

Wholegrain Cycles Jack Black Bike Rack in Black

£72.00 £80.00 10% off
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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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Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.

Returning an item

Online or in-store purchases can be returned to any of our 12 stores free of charge or can be returned by post or courier at your cost after completing the online returns form below. If you are returning an item due to a fault, we will refund your postage costs.

Bikes & Bulky items

If you wish to return a bike or bulky item to us, please keep the box it arrived in and let us know by contacting our support team via our online webchat, email or by phone (020 45063856) and we will help arrange a collection.

Non Bike - Customer Returns Form

If you wish to return or exchange an item, please fill out the form below following the steps inside. Returns can be processed quicker if all required information is provided.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

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

Wholegrain Cycles Jack Black Bike Rack in Black

Season:All Year Round

Brand:Wholegrain

Code:WG-BJACK-BNGY

Wholegrain Jack lets you carry more on your bike. It requires no tools to fit and securely attaches to bikes with a handlebar diameter of 22.2mm, 25.4mm, and 31.8mm. Its quick and easy to attach and remove, allowing you to swap it between bikes. Please check the compatibility diagrams and FAQs to ensure the rack fits your bike before purchase.

Made from solid 304 stainless steel, the rack is designed for durability. It fits around 90% of bikes, including old-school cruisers, modern commuters, road, and mountain bikes. It is compatible with carbon handlebars and Redshift suspension stems. For 26mm bars, use the 25.4mm shims, and for 35mm bars, an additional 3D-printable shim is required. Check under the spacers regularly to ensure no grit or dirt has accumulated, as this can cause wear.

The rack is rated to carry a maximum of 5kg. While it can be pushed slightly on smooth roads, it is not officially recommended to exceed this limit as heavier loads can negatively affect bike handling. The design is field-repairable; if a strap fails, it can be replaced with any strap, rope, shoelace, wire, or even a t-shirt to get back on the road.

Included in the Box:

  • Rack: Wholegrain Jack with removable fabric base.
  • Shims: Pairs of handlebar shims for 31.8mm, 25.4mm, and 22.2mm bars.
  • Inserts: Tapered inserts for 25.4mm to 22.2mm bars.
  • Straps: Five stem loadstraps (sizes XS to XL) and an adjustable steerer retention strap with O-ring and rubber strap tidies.
  • Bungees: Two 1.2m bungee straps with snake-head buckles.
  • Manual: Instruction manual.

Technical Specifications:

  • Dimensions: H: 224mm, D: 284mm, W: 226mm.
  • Weight: 730g.
  • Maximum Load: 5kg.
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