While cruising the halls of Eurobike 2010 we spotted the impressive new Da Bomb Tsar Bomba downhill bike, although it was hard to miss with it's stunning metallic red color. Besides the new 9" travel bike, Da Bomb also had new stems, chainguides, and a wide 800 mm bar on on display. Check out all the photos inside!
Da Bomb Tsar Bomba
Boom! This is Da Bomb's newest bike, the Tsar Bomba. This is a completely new model for 2011, with the one you're looking at still at the pre-production level. While DaBomb may not be the first name that comes to mind when thinking about a new downhill bike, the Tsar Bomba looks like a serious entry into the category.
Da Bomb didn't want to try and reinvent suspension technology with the Tsar Bomba, but to use a stiff and strong platform that would be reliable over time. To that end they chose to use a design that may look familiar, but with some of their own tweaks. Their Multi-bar PRS suspension is a single pivot and linkage driven shock system that has a full 9 inches of travel available. All of the pivots are captured within the twin upright frame spars and everything rotates on sealed bearings. The swing link that controls the shock rate is driven by a small push link attached to the swingarm. The bike is pictured with a Manitou shock, but it will ship with X-Fusion's new Vector RC damper.
Its all in the details. The parallel spars are CNC machined with the Da Bomb logo and material is removed to reduce weight. This particular Tsar Bomba is still in the pre-production stage, expect more metal to be taken out on the production version. A full sized 83 mm bottom bracket shell and ISCG-05 tabs can be found between the Shimano Saint cranks. I'm sure some of you out there who ride a more boutique name than Da Bomb will be hesitant to accept the Tsar Bomba, but the bike is impressive in person.
The top and down tubes of the Tsar Bomba are hydroformed to improve weld area and strength. There will be two color options to pick from, but after seeing the metallic red shown here it would be my first choice. To get this impressive glow, the bare frame is first polished to a high sheen and then painted with a gloss red clear coat, not anodized as I first thought. If red isn't your thing, your other choice is cobalt blue.
Mandatory tapered headtube, complete with low stack headset. The geometry of the Tsar Bomba is on the steeper side of the current trend, with a 65 degree head angle that will excel on tighter tracks or under precise riders.
Shouldn't be any hint of trouble back here! This is one very solid looking rear end with large square stays and serious looking dropouts. Downhill standard 12 x 150 mm rear end spacing is used, as is a machined post mount brake fitting. The bike uses a standard aluminum axle to save weight. The Tsar Bomba will only be offered in one size that uses a 16" long seat tube and a horizontal top tube length of 563 mm.
Da Bomb has two chainguides in their catalog, the Recoil CGS that can be used as a standalone guide, and the BGS shown here that requires a bash guard. The difference is in the upper guide piece, with the BGS model shaped to work with a guard to keep your chain on and the CGS using a unclosed upper guide piece. Both models fit on ISCG-05 tabs and are adjustable to fit ring sizes between 32 and 40 teeth. No, the design is not ground braking, but you can only keep a chain on in so many ways!
Da Bomb also had their new MK19 stem on display as well. This CNC'd beauty features a wrap around clamp that will apply more equal force to the steerer tube, as well as lessen the chance of painful knee strikes into the clamping area. It comes with the anodized bar shim shown in the picture so it is ready to accept both 25.4 and 31.8 mm diameter bars. Length is 40 mm and color options are royal blue, orange, and black.
Da Bomb enters the handlebar width war with their 800 mm wide Bazooka. The 6061 double butted bar uses a 31.8 mm clamp diameter and features a half inch of rise. Upsweep is 5 degrees, with 9 degrees of backsweep. Colors to pick from include the gold shown here, as well as black, white, silver, and royal blue.
Visit the Da Bomb website
to their entire lineup.Stay tuned for more Eurobike coverage!