Transition Sentinel 29er 2021 (Carbon)

Custom carbon rockguard

Custom carbon mountain bike frame protection for your Transition Sentinel 29er 2021 (Carbon) downtube and bottom bracket.

Handmade from high-quality carbon fibre, a Rockguardz Rockguard frame protector attaches neatly to your downtube to ward off damage from rocks and roots, shady uplifts, badly packed vans, crashes and carnage.

Every Rockguard is handcrafted and custom made to exactly fit your frame. It’s super light, tough as nails, effortlessly stylish and the perfect fit for your mountain bike.


15% off any Mudguardz when you buy a Rockguardz

15% off any second item when you buy a Rockguardz

Don’t see the right year for your bike?

With so many bikes out there, it’s possible we don’t have one for your particular make and model. 

But don’t worry, we’d love to work with you to add your bike to our collection. 

If your bike is one that we’d like to make a guard for, we’ll say ‘thanks’ by giving you a guard for free


Super light, strong and durable, Rockguardz frame protectors wrap around your downtube and stand guard against damage where you need it the most. Low profile but super-strong, they’ll soak up impacts and keep your pride and joy safe, without doing anything to ruin the clean lines of your ride.

Rockguardz frame protectors are painstakingly made and handcrafted with multiple layers of carbon and a combo of diolen and twill fabrics for a perfect blend of stiffness, flexibility and style. There’s no one-size-fits-all solution here and every guard is precision made to be the perfect fit for your make, model, year and size without the need for zip ties or sticky stuff.

If things ever do go wrong and you damage your guard, we’ll offer a discounted replacement under our crash replacement guarantee.


4 reviews for Transition Sentinel 29er 2021 (Carbon)

  1. sentinelIE

    Rockguardz 👍
    Brexit and customs 👎

  2. Pietro (verified owner)

    Great experience. The guard fit perfectly, is really beautiful and the communication with the seller was great

  3. Lee (verified owner)

    Does what it says on the tin essential piece of kit if you have a carbon frame saved mine from rock strikes numerous amounts of times already Thankyou rockguardz 🤘


    Perfect fit !!
    Rapid delivery, very happy with the product

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