We first saw a prototype of Arbr's new 29er at the Bespoked bike show back in May, now nearly six months on, they have a production version ready to go.
The bike was designed to be a bit more of an all-day machine when compared to the winch and plummet, 27.5" Saker. The rocker mechanism is similar to that used on the Saker but dropped lower in the frame and the droplink to the rocker sits below the bottom bracket rather than above. The idler pulley design has also gone to improve pedalling efficiency and reduce weight.
The original raw carbon prototype
was definitely better received than ARBR's first bike, the Saker, in our comment section and there haven't been too many changes made since then. The main aesthetic difference comes in the seat tube where a bulge has been added so that the recent longer travel posts to be dropped all the way to the collar.
RB2 Details Frame:
British made carbon, 160mm travelRecommended fork:
160-170mm travelWheel Size:
230 x 65mmHead tube angle:
64°Seat tube angle:
Only one availableAvailable:
N/AMore info: arbr.bike
The new seat tube kink is designed to accommodate longer travel dropper seat posts.
Other than that, the summer spent testing hasn't yielded too many changes to the version we saw before. A rubber strip on the chainstay has now been replaced by a molded chain guard with noise dampening nobs and there will also be a chain retention device that wasn't fitted on this bike.
While it has a bit more of an all-day outlook, the RB2 is still a 160mm travel bike and can be fitted with either a 160mm or a 170mm fork, so it still has plenty of descending credentials. With the longer fork, the bike has a 64° head angle, a 78° seat tube angle and a wheelbase of 1275mm. It looks like only one size is going to be available for now and that has a reach of 485mm and 448mm chainstays.
Rob Barr, the man behind ARBR believes that the RB2 will take over the majority of manufacturing time for the brand. The bike will be compatible with both air and coil shocks. Robert hasn't finalised prices yet but is expecting it to be cheaper than the £4,395 Saker with a Float X2The Saker
The Saker has been updated too, although that was only to bring it in line with metric shock sizing. We've never posted it in the flesh with the full paint job before so here's its second chance to win you over.