3M Scotch 2228 Rubber Mastic Electrical Tape 5.1 cm x 3 m Black Self-Fusing Rubber Tape for Insulating and Sealing - 1 Roll

Got this excellent black tape for mtb frame protection. I highly recommend 2228, was easy to apply. I used one box (£20) and cut strips and fitted side by side. It is maluble to seal together. Covered underside of all the bike frame, to protect against stone chips. Used on down tube and chain stay. Not bothered about weight of tape. Might be a pain to get off, but I will be putting new on.

Great product. A bit expensive but there’s plenty supplied. Easy to shape/cut and sticks down well.

Was looking for something to protect my new mountain bike frame from chain slap,heard about 3m mastic but struggled to find any at first..... Plenty of unbranded options around but reviews mentioned the tape not sticking on the edges.Well after cutting it to shape, wiping the paintwork with brake cleaner, I applied it with ease to mould it around my chainstay, follows all the contours and sticks like s@#& to a blanket!..... Very happy with my choice

Bought this to protect my bike's chainstain and I've also used it to protect the cranks ends. It's very easy to apply and seems ideal for the job. Only put 4*due to the price (£24 for a roll).

used for chainstay protector on bike, better than expected, helps me have a quiet bike again.It sticks well and is very stretchy, left unstretched as a cushion for the chain and stretched round a couple of cables to tidy them, as a bit of a tape freak I can honestly say this stuff is great to have at hand.

Very sticky to seal off the electrical joint to prevent moisture and also I used it on my Mtb for chain stay protection.

Fit it around the bottom bracket area to protect against stones.

Great product, excellent quality and great seller