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## Send-it-all on the new Sentinel*A bike tht says yes to every trail, every ride and begs for more.*The Sentinel rides the lines between planted bottomless ..
## Send-it-all on the new Sentinel*A bike tht says yes to every trail, every ride and begs for more.*The Sentinel rides the lines between planted bottomless ..
Transition

Transition Sentinel Carbon MTB Frameset Graphite Grey

£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.

Hassle free returns

Your statutory rights are not affected by our Returns Policy. To the extent that any provision in our Returns Policy conflicts with your statutory rights, your statutory rights will prevail and the particular offending provision in our Returns Policy will be deemed inapplicable.


Returns and refunds

If you are unhappy with your item, please let us know. Our Returns Policy gives you 30 days to return or exchange an item bought with a valid receipt. If 30 days have gone by since your purchase, we cannot offer you a refund or exchange.To be eligible for a refund or exchange, goods must be returned in a re-saleable condition. That means your item must be unused and in the same condition that you received it. The item must be in the original packaging and returned with any accessories, labels and “free gifts” or bonus items.

To complete your refund or exchange, we require a receipt or proof of purchase.

Under the Consumer Rights Act of 2015 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).

After the initial 30 days, you can't demand a full refund in the first instance, but you still have the right to a repair or replacement.

How to return your item(s):

  1. Put your unused, labelled item for return back in its original packaging.
  2. Fill in a Returns Form and include this with the item you are returning in a parcel.
  3. Send the parcel to the following address:

J's Cycles

Unit A Kirkgate Commercial Centre

Chantry Bridge

Wakefield

WF1 5DL


We will be in touch if there are any issues or when your return has been processed.

Refunds (if applicable)

Once your returned item is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 calendar days. If you paid for standard delivery of the goods, the cost of standard delivery will also be refunded.

There are certain situations where only partial refunds are granted (if applicable):

- Any item not in its original condition, which is damaged or missing parts for reasons not due to our error

- Any item that is returned more than 30 days after delivery.


Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at orders@jscycleshack.com

Returns Shipping

If the item is being returned as a result of our error (damaged, defective, wrong item sent etc), we will refund Royal Mail First Class or Standard Parcel postage costs.

If the item is being returned as a result of a change of mind, purchased the wrong size, item is not suitable, etc… the original cost of the outbound postage will be refunded by us, however the consumer is liable for all return costs incurred.

If you are shipping an item over £50, you should consider using a trackable shipping service or purchasing shipping insurance as we cannot guarantee that we will receive your returned item.


International Refunds

All refunds are processed in GBP (£). J’s Cycle Shack will not refund any charges made by your bank for currency conversions or any customs charges incurred throughout the shipping/returns process. J’s Cycle Shack will not refund differences caused by fluctuations in exchange rates. Shipping costs will be refunded as outlined in the paragraph above.


Guidelines For The Best Experience

Each returned item should be in it’s original packaging with the manufacturer’s labels attached. Please do not tape or attach labels directly to the retail packaging.

Retail store purchases should be returned to the original place of purchase. If this is not possible then follow our website returns policy and include proof of purchase.

We reserve the right to reject the return of goods which are not returned in accordance with our Returns Policy and we may request that you pay for the shipping of such goods back to you. Our returns policy does not affect your statutory rights.

A deduction will be made if the value of the goods has been reduced as a result of you handling the goods more than was necessary. The extent to which a customer can handle the goods is the same as it would be if you were assessing them in a shop.

Once we receive your goods, we will inspect and process them within 24hrs. Refunds will automatically be issued to the same payment method used to purchase the goods. As soon as your return has been processed by our team we will email you to let you know. In the unlikely event that you don’t receive this email within 10 days of posting your parcel to us, please get in touch with our Customer Service Team through our Contact us page or by calling 01977 67999.

If your purchase isn’t everything you expected it to be and you wish to exchange an item the simplest and quickest thing to do is place a brand new order for your new item and return the old one to us for a full refund.

Goods that cannot be returned:

There are some goods you can’t return if you simply change your mind, including:

  • CDs, DVDs or software if you’ve broken the seal on the wrapping
  • Perishable and other items that deteriorate rapidly such as food
  • Custom Built, tailor-made or personalised goods
  • Underwear and earrings
  • Used goods including footwear which have had cleats fitted

European Online Dispute Resolution (ODR)

For information regarding European ODR, please click here.


Right to cancel

In addition to our Returns Policy, under the Consumer Contracts Regulationsof 2013, you have the right to cancel your order up to 14 days from the day you receive your goodsif 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 thegoods.Therefund will include any standard delivery charges paid. You will be responsible for the cost of returning a cancelled order to us.

We will refund to you the price paid for the items and (unless you did not pay for delivery) the delivery charges that you paid up to a maximum amount of the cost of our standard delivery option. You will be refunded to your original method of payment within 14 calendar days of our receipt of the cancelled items or, if earlier, within 14 days from the day we receive proof of return from you. If we do not receive the cancelled items back, we may arrange to collect them from you at your cost.

To exercise your right to cancel, please email us at orders@jscycleshack.com with your order number, first and last name.

Transition Sentinel Carbon MTB Frameset Graphite Grey

Season:2025

Brand:Transition

Code:TR.FS.25.SENT.CRBGRAGRY

Send-it-all on the new sentinel

a bike tht says yes to every trail, every ride and begs for more.

The sentinel rides the lines between planted bottomless sender and playful, poppy trail pony. This leavest he sentinel right in the sweet spot, as we like to call it. It's versatile attitude helps riders excel and push heir limits, making it the "one bike" most will need. Its intuitive nature makes it easy to ge acquainted with; you'll find yourself sending lines, jumps, and maneuvers you always felt were beyond your ability. Where before you went around, now you go over. Where you pushed up, now you pedal. Where your rolled, now you boost. It's time to send-it-all.

Refining the legend

the new sentinel may have a similar silhouette, but we've fully redesigned th frame with update industrial design, features and geometry to turn ut up a notch. The leverage curve supports the bike higher in its travel, keeping it quick, nimble and light on its feet while leaving plenty of room for big hits. This gives it the lively, sporty attitude felt in the spur and smuggler without sacrificing its capabilities in rougher terrain. New size-specific chainstays and a 64 headtube angle keep riders balanced with great traction on climbs and descents. All of this crates a bike tht encourages new riders tyo push their limits while ensuring a seasoned Pro feels none.

Refined details

we added internal frame storage in the downtube of our carbon frame. The boom box (burritos or other munchies) is positioned below and isolated from the water-bottle cage mount. This allows you to leave your bottle installed in your cage while easily getting into the boom box, reducing clutter and fuss on the trail. It also prevents noise and potential failure since it doesn't place any weight on the door itself. With an easy access lever and two supplied gear bags, riders can stow away snacks, tools, a tube, or anything else they want to have along for the ride.

Geo adjust flip chip: the lower shock mount has a geo-adjust flip chip to accommodate mixed wheels, and features a new design that allows water, dirt and debris to easily wash away.

Mud guard: the sentinel comes with a pre-installed mudguard to protect the main pivot area, improving the bearing life.

Chainstay protector: an all-new chainstay protector minimizes chain slap, so you can enjoy the sound of your favourite turns.

Cable ports on the side of the headtube allow for easy and simple cable routing with customizable options for mechanical or wireless shifting as well as left or right rear brake setups. The new port stops cables from getting kinked during a crash and holds them tight to prevent rattling. If you aren't using the port at all, simply cover it with the supplied insert to prevent dirt or water from getting inside your frame and keep a clean aesthetic. These ports help improve the looks of the frame while remaining functional and simple for maintenance.

Fidlock ready

the new sentinel is fidlock ready. We know water bottle capacity is a priority on every bike and can be tricky on smaller sizes. To give you the most options on all sizes, every sentinel will come with a fidlock base installed. Fidlock bottles give you more volume for water in a smaller space, allowing for a fidlock 450ml bottle on our xs frame, up to 590ml on sm, and up to 750ml on m-xxl.

  • 29" wheels s-xxl and mixed wheel compatible, dual 27.5 on xs.
  • 160mm travel front, 150mm travel rear (up to 160).
  • Boom box in frame storage with supplied frame storage bags on carbon models.
  • 64 headtube angle.
  • Size specific chainstays (xs 436, sm/md 442, lg/xl/xxl 448).
  • Increased size range (xs-xxl).
  • Main pivot mud guard.
  • Carbon and aluminium frame options.
  • Available in 3 colors.
  • New cable routing ports.
  • Refined kinematics create a lively, progressive platform.

Carbon and aluminium frame options

we want everyone to have the bike of their dreams, so we are offering the sentinel in both carbon and aluminium. To make this bike as accessible as possible, we crafted the aluminium frame to remain simple, keeping costs and weight to a minimum. This means it does not have the boom box, but does still have the flip chip and all other features found on the carbon frame. The aluminium frame is available with two build kits, Shimano deore and xt, as well as frame only. The carbon frame is available in three build levels, Shimano deore, xt, and SRAM x0 axs as well as frame only. Each carbon build has the same high quality carbon construction including the boom box and frame bags.

Giddyup suspension design

we want to make it as easy as possible to experience great rear suspension performance. The giddyup suspension system is designed to behave intuitively across a broad range of setup. Because, we get it, sometimes you just want to grab your bike and giddyup, without checking your setup. When you do, it will always feel good.

We did this by balancing a 25% progressive leverage curve with a consistent linear rate of change. Anti-squat is tuned to enhance pedaling performance and acceleration. Overall chain growth is moderate and reduces after sag so chain tension doesn't get in the way of the suspension working.

This translates to killer small bump compliance and great mid-stroke support that gradually transitions into an end of stroke ramp that is subtle, yet supportive. The amount of consistent progression is carefully optimized for both air and coil shocks. Riders are able to add or remove volume spacers in air shocks to suite their individual riding style and there is no compromise to bottom out support with coil shocks. The sentinel has 150mm of rear wheel travel when used with the supplied 205mm x 62.5mm stroke shock. It is also possible to install a shorter, 205mm x 57.5mm stroke shock, to decrease the rear wheel travel to 140mm.

A wide usable sag range of 25 - 35% allows the rider to tune the feel of the bike; from poppy and playful, to planted for plowing. Wherever you end up, you can focus on the trail without remotes, levers or knobs. Just grab your bike and giddyup

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