#HASHTAGG 135.9 Freewheel – 18 Tooth


Coming in at a whopping 85 dBA on the sound meter, these #Hashtagg 135.9 Freewheels are thee loudest the world has to offer for single speed bicycles. With 135 engagement points aggressively clicking at every rotation, you’ll have heads turning no matter what. These are incredibly high quality, sealed freewheels. We can guarantee you won’t want another freewheel once you feel the difference in these.

*These will not ship from our location in Canada, instead from our partner in the UK through Royal Mail if you choose Canada Post Tracked, or FedEx if you choose UPS Tracked. 

Available on backorder

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SKU: hshtg13518-01 Category:


– Sealed bearing 135 engagement point freewheel from #Hashtagg.
– 135 engagement points are achieved by using 3 offset groups of 3 pawls into a 45 tooth ratchet.
– Each pawl is actuated with an individual spring, giving precise, reliable engagement.
– Dual sealed bearing design gives great driveshell stability, as well as allowing a unique design that requires no lockring (the bearings are held in place using an external circlip), helping to save weight. Please note that this produces more ‘drag’ than a regular single speed freewheel.
– The freewheel width is kept to a minimum to by using BB-style removal tabs – this means the freewheel can be removed with a Shimano-style 20 spline bottom bracket tool.

– 1.37″ x 24tpi thread fits almost all hubs and cranks.
– Available in 18t only.
– Weight: 175g (18t)

Please note that this freewheel MUST be bedded in with ‘normal’ riding before trials use. We also recommend thinning out the grease inside this freewheel after the bedding in period, since the sealed bearings will expel any excess grease when new and this will enter the pawl mechanism.

Please note that the sound level of a freewheel may change after bedding in. A 10 dB increase in sound level is approximately equivalent to double the perceived volume.