The CHASE RSP 4.0 starts off with the Olympic and World Championship geometry that Chase Pro Riders Connor Fields and Joris Daudet have been winning on for years. The triple butted tubing keeps the weight down and the strength at an Elite level. The Aero Seat Post/Clamp system and the internal brake cable give the RSP 4.0 a clean, factory look, to match the all new graphics and colors!

But here is where the RSP 4.0 gets really exciting – with the addition of new technical advancements on the Expert XL and larger size frames. These include a new enclosed dropouts with integrated 10mm (3/8″) chain tensioner system*, a integrated 1-1/8″-1.5″ tapered head tube, a press Fit BB86 Bottom Bracket, and the RSP 4.0 has been specifically designed to work with 120mm Disc brakes or traditional V brakes, with the optional ELEVN Disc Brake adaptor and 120mm Disc. For the RSP 4.0, we are excited to offer 2 new frames sizes – XXXL and Expert Cruiser. Also, the RSP 4.0 Frames are delivered to you with the 27.2 Aero Seat Post and Seat Post clamp and no additional cost!

The Mini, Junior, and Expert sized frames are 200 grams lighter than the RSP 3.0 and also include the 25.4 Aero Seat Post and Seat Clamp. These frames also feature a traditional Euro BB, Open Drop out design, and a standard 1-1/8″ intergrated headtube but Not compatible with disc braking

Put this all together and you get the best Alloy BMX frame ever created.

* For Chase RSP 4.0 frames sizes Expert XL and above, please not the Enclosed drop out on the frame will only work with hubs where the 3/8″ (10mm) axle bolts remove from the hub.

Offered in 14 different sizes

11 options in 20″ frames :
Mini, Junior, Expert, Expert XL, Pro, Pro+, Pro XL, Pro XL+, Pro XXL, Pro XXL+, Pro XXXL
3 options in 24″ frames:
Expert Cruiser, Pro Cruiser, Pro+ Cruiser

Integrated Tapered Head Tube
1-1/8” top to 1.5” bottom

Integrated Cable Routing
Brake cable is routed through top tube

Semi Integrated Brakes Studs
Lower position make for a cleaner look when using disc brakes

Optimized Aero System
Chase Aero system seat post and clamp included

Press Fit Integrated BB86 Bottom Bracket

Extra Length Reinforced Enclosed Dropout with built-in tensioner for 10mm (3/8″) axle

Black with Neon Yellow/Grey graphics

Black with Red/Grey graphics

Black with Blue/Grey graphics

Black with White/Grey graphics

Polished with Neon Yellow/Grey graphics

Polished with Red/Grey graphics

Polished with Blue/Grey graphics

Sand with Red/Grey graphics

Born from some of the best alloys for building BMX race bikes, our special 7005-T6 SpeedLite alloy is the perfect blend for our Hydroforming process, giving the RSP frames the core strength needed to produce unmatched speed on the track, while keeping the overall weight of the frame down to a minimum.

Chase utilizes the triple butting on our line of RSP 4.0 frames. A triple-butted tube means it has three different wall thicknesses along its length. Chase uses this technology to reduce the amount of material used when building the RSP 4.0 frame, decreasing its weight by 15% compared to last years frame tubes used to construct the frame. Lighter where it can be and stiffer where it needs to be means no excess weight on the bike that gives you an advantage with the RSP 4.0 frame and against the completion.

Chase utilizes tapered tubing to offer you the most durable, yet light weight products, to help you achieve optimum results on the BMX race track. Our tapered items, use multiple thicknesses in the same tube, so the tube can be reinforced where needed with precision to help reduce stress areas where needed and lighten up the areas that don’t require extra materials. In aluminum the result are tube walls that eliminate stress points, boosting strength, reducing weight and improving fatigue life. The advantage is clear : Tapered tubes enhances strength and durability, at less weight.

Hydroformed tubes have two main advantages. First, the narrow axis is a flatter surface, which means more surface area to carry the load, so it is stiffer & stronger across the minor axis. Secondly, the deeper axis is stiffer since the stiffness varies to the cube of the diameter, stronger to the square. When using an oval shaped tube on a typical BMX frame it helps reduce flex but only in one direction, but on the Chase frames, the tubes are oval in both directions in the main flex areas and these tubes help reduce flex in both main directions.