the CHASE RSP 5.0 is the culmination of the refinements and upgrades to make it our best Alloy frame ever!

Chase BMX started with the RSP 1.0 frame that Connor Fields rode from Day 1. Each time we updated the frame, we took the feedback from Connor, then Joris, and other Pro riders we sponsored. The RSP 5.0 is the culmination of the refinements and upgrades to make it our best Alloy frame ever.

The Chase RSP 5.0 Frames feature Tapered Headtube (Expert XL and Larger sizes), an Aero Seat Post tube, Enclosed Rear dropouts, Press Fit Bottom Brackets (Expert XL and Above), Triple and Double Butted tubes, Hydro and Muscle formed 7005 T6 Premium Ultralight tubing. RSP 5.0 Frames now feature a new, fully internal cable routing from the Head Tube, through the Down Tube & Bottom Bracket, and exits out of the Chain Stay (Expert XL and Larger), and for the Mini – Expert, the cable exits out of the bottom of the down tube.

All Chase RSP 5.0 frames are Disc Brake only designed frames. The dropouts were restructured to offer better clearance for a wide array of disc brake calibers, improving the overall braking performance, and now compatible for both post and flat mount disc brake system. (Disc Adapter kit sold separately)

The Chase RSP 5.0 Frame is now offered in a OS20 frame size option with refined geometry for riders wanting to use OS20 wheels, forks, and tires. OS20 uses the oversizes rims, tires, and forks to give larger riders a more comfortable ride as well as experience all the benefits of OS20.

Frames estimated to be available in Late 2022

Offered in 15 different sizes with 2 new OS20 sizes

11 options in 20″ FRAME SIZES :
Mini, Junior, Expert, Expert XL, Pro, Pro+, Pro XL, Pro XL+, Pro XXL, Pro XXL+, Pro XXXL
2 options in OS20 FRAME SIZES : Pro XXL and Pro XXXL
2 options in 24″ FRAME SIZES : Pro and Pro+ Cruiser

COLORS OPTIONS :

RSP 5.0 Frames are made exclusively for Disc Brakes and Require an adapter to do so. The Elevn Disc Brake adapter was designed to work correctly with the frames, but other brands may work.

INNOVATIVE Frame features

Integrated Tapered Head Tube
For stiffer tapered steer tube fork

NEW Integrated Cable Routing
Routed from head tube to chain stays

NEW Restructured Enclosed Dropouts
To offer better clearance for a wide array of disc braking with internal built-in tensioners

Aero System shape
To improved aerodynamics and a slightly stiffer feel.

Press Fit Integrated BB86 Bottom Bracket
Simple and easy way to install

available soon in 7 color options

TECHNOLOGIES

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 5.0 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 5.0 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 5.0 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.

Chase RSP 5.0 Frames feature the Aero seat post tube, seat post, and seat post clamp into BMX racing. This is to not only to help gain fractions of a second on the track with improved aerodynamics, but the Aero tubes also offers a slightly stiffer feel. We know BMX bikes don’t need to go fully aero testing into a wind tunnel, but when races are won or lost by fractions of a second, every advantage will help.

All Chase Frames feature Muscle Forming for Chain and Seat Stays, a technique to give the back end of the ACT & RSP frames the stiffness and design shape we wanted and needed for optional design a special mold and process were needed to let us build the ultimate frame. Used with Carbon Fiber or Alloy to do just that, while letting us design the exact shape, design, and thickness to offer the optional designed back end on the Chase frames. 

For the Chase RSP 5.0  frames, we have restructured the dropouts to offer better clearance for a wide array of disc brake calibers, improving the overall braking performance. Like the RSP 4.0, we have designed them to be able to take the extra force created by using a disc brake and disc brake mount, now compatible for both post mount & flat mount disc brake system.

While each rider is unique, Chase has developed Bio Fit sizing for our frames to offer riders the ultimate size options for BMX racing. The sizing used for the Chase line has been carefully designed to give riders the optimum power output in the size range offered. Our commitment to details and offering many size options, gives you a custom fit BMX frame, that you can buy right at your local Chase BMX Dealer.

Chase RSP 5.0 Frames use a Integrated Tapered Headtube. Tapered head tubes offer a combination for the bearing sizes. Our tapered head tubes have a 1-1/8” upper diameter to 1.5” lower diameter. this allows you to run a tapered steer tube fork, or use a full 1-1/8” fork steer tube, with the offered 1.5” lower bearing, when the headset has an optional 1-1/8” to 1.5” fork race option.

Chase RSP 5.0 Frames use a Press Fit style Bottom Bracket tube. Press Fit BB are a simple and easy way to install a Bottom Bracket, where the Bottom Bracket you supply for your frame has the Bearings in cups and simply press into the frame, eliminating the chance of damaging BB threads, with the traditional Euro BB. The BB is usually lighter and easier to install and remove as well.

Chase RSP 5.0 Frames feature an Fully enclosed, Extra long (2.3″ or 60mm) axle area slot, 10mm drop outsThe Enclosed system also houses an Internal system with built-in alloy tensioner, allowing you to use the full length of the dropout. 

Chase RSP 5.0 Frames feature new Internal Cable Routing from the Head Tube, through the Down Tube & Bottom Bracket, and exits out of the Chain Stay (exits out of the bottom of the down tube for small sizes), giving you the factory look, as well as providing protection for the brake cable and graphics, since the cable does not rub against the frame.

GEOMETRIES

Frame Size TT Rider
Area
CS
min
LR FH Tires AF SA BBH BB
type
HT HT
type
SPL SP Dropout
type
Max Tires
Clearance
Brake
type
Weight
20″
Mini 18″
457.2mm
20.4″
517.82mm
12.76″
324mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1-1/8″
Rear: 20×1-1/8″
73° 70° 10.6″ / 269.4mm Euro BSA
68mm
4.5″
115mm
Integrated
IS 42/42
8.5″
215.9mm
Aero
25.4mm
Enclosed
3/8″ – 10mm
20×1-1/8″ Post or Flat mount
120/140mm
NC
Junior 19″
482.6mm
21.2″
537.34mm
13″
38.1 mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1-1/8″
Rear: 20×1-1/8″
73° 70° 10.6″ / 269.4mm Euro BSA
68mm
4.5″
115mm
Integrated
IS 42/42
8.8″
223.52mm
Aero
25.4mm
Enclosed
3/8″ – 10mm
20×1-1/8″ Post or Flat mount
120/140mm
NC
Expert 19.5″
495.3mm
21.5″
546.57mm
13.25″
38.1 mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1-3/8″
Rear: 20×1-3/8″
73.4° 70.4° 11″ / 279.4mm Euro BSA
68mm
4.7″
120mm
Integrated
IS 42/42
8.8″
223.52mm
Aero
25.4mm
Enclosed
3/8″ – 10mm
20×1-3/8″ Post or Flat mount
120/140mm
NC
Expert XL 20″
508mm
21.6″
549.18mm
13.5″
342.9mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1.6″
Rear: 20×1.4″
Rear: 20×1.6″

73°
75.5°

70°
72.1°

11″ / 279.4mm
11.95″ / 303.7mm
Press Fit
BB86
4.5″
115mm
Integrated
IS 42/52
8.8″
223.52mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
20×2.10″ Post or Flat mount
120/140mm
NC
Pro 20.5″
520.7mm
22.2″
564.24mm
14.25″
361.95mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1.75″
Rear: 20×1.6″
Rear: 20×1.75″

74°
74.6°

72.5°
73.1°

11.5″ / 292.1mm
11.74″ / 298.3mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
9.3″
236.2mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
20×2.10″ Post or Flat mount
120/140mm
NC
Pro + 20.75″
527.05mm
22.4″
569.32mm
14.3″
361.95mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1.75″
Rear: 20×1.6″
Rear: 20×1.75″

74°
74.6°

72.5°
73.1°

11.5″ / 292.1mm
11.74″ / 298.3mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
9.3″
236.2mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
20×2.10″ Post or Flat mount
120/140mm
NC
Pro XL 21″
533.4mm
22.6″
574.45mm
14.25″
361.95mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1.75″
Rear: 20×1.6″
Rear: 20×1.75″

74°
74.6°

72.5°
73.1°

11.5″ / 292.1mm
11.74″ / 298.3mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
9.3″
236.2mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
20×2.10″ Post or Flat mount
120/140mm
NC
Pro XL + 21.25″
539.75mm
22.8″
579.6mm
14.5″
368.3mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1.75″
Rear: 20×1.6″
Rear: 20×1.75″

74°
74.6°

72.5°
73.1°

11.5″ / 292.1mm
11.74″ / 298.3mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
9.3″
236.2mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
20×2.10″ Post or Flat mount
120/140mm
NC
Pro XXL 21.5″
546.1mm
23″
584.75mm
14.5″
368.3 mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1.75″
Rear: 20×1.6″
Rear: 20×1.75″

74°
74.6°

72.5°
73.1°

11.5″ / 292.1mm
11.74″ / 298.3mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
9.3″
236.2mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
20×2.10″ Post or Flat mount
120/140mm
NC
Pro XXL + 21.75″
552.45mm
23.2″
589.96mm
14.8″
374.65mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1.75″
Rear: 20×1.6″
Rear: 20×1.75″

74°
74.6°

72.5°
73.1°

11.5″ / 292.1mm
11.74″ / 298.3mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
9.3″
236.2mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
20×2.10″ Post or Flat mount
120/140mm
NC
Pro XXXL 22″
558.8mm
23.4″
595.15mm
15″
381mm
1.5″
38.1mm
12.1″
307mm
Front: 20×1.75″
Rear: 20×1.6″
Rear: 20×1.75″

74°
74.6°

72.5°
73.1°

11.5″ / 292.1mm
11.74″ / 298.3mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
9.3″
236.2mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
20×2.10″ Post or Flat mount
120/140mm
NC
OS 20″
OS Pro XXL 21.5″
546.1mm
23.8″
604.46mm
14.5″
368.3mm
1.5″
38.1mm
13.2″
334.5mm
Front: OS20x1.85″
Rear: OS20x1.6″
Rear: OS20x1.85″

74°
74.4°

72.5°
72.9°

11.5″ / 292.1mm
11.67″ / 296.4mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
10″
252.73mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
OS20x1.85″ Post or Flat mount
120/140mm
NC
OS Pro XXXL 22″
558.8mm
24.2″
614.39mm
15″
381mm
1.5″
38.1mm
13.2″
334.5mm
Front: OS20x1.85″
Rear: OS20x1.6″
Rear: OS20x1.85″

74°
74.4°

72.5°
72.9°

11.5″ / 292.1mm
11.67″ / 296.4mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
10″
252.73mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
OS20x1.85″ Post or Flat mount
120/140mm
NC
24″
Pro Cruiser 21.5″
546.1mm
24.4″
619.26mm
14.7″
374.58mm
1.5″
38.1mm
14″
355mm
Front: 24×1.75″
Rear: 24×1.6″
Rear: 24×1.75″

74°
74.3°

71°
71.3°

11.8″ / 299.72mm
11.92″ / 302.76mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
10.6″
269.24mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
24×2.10″ Post or Flat mount
120/140mm
NC
Pro + Cruiser 22″
558.8mm
24.8″
628.7mm
14.7″
374.58mm
1.5″
38.1mm
14″
355mm
Front: 24×1.75″
Rear: 24×1.6″
Rear: 24×1.75″

74°
74.3°

71°
71.3°

11.8″ / 299.72mm
11.92″ / 302.76mm
Press Fit
BB86
4.7″
120mm
Integrated
IS 42/52
10.6″
269.24mm
Aero
27.2mm
Enclosed
3/8″ – 10mm
24×2.10″ Post or Flat mount
120/140mm
NC

Head Tube Angles and BB height will vary buy the fork and tires used when Measuring. We have updated our angles to be exact when using a IKON Caron Fork or Elevn Chromo Fork (OS20) as well as used Tioga Fastr or PowerBlock tires to give you the true angels and measurements. Usage of other forks and tires will give you a + or – of Heights and Angles.

SIZING CHART

The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Chase retailer.

FEET
CM
3' 7"
110
3' 8"
112
3' 9"
115
3' 10"
117
3' 11"
119
4'
122
4' 1"
124
4' 2"
127
4' 3"
130
4' 4"
132
4' 5"
135
4' 6"
137
4' 7"
140
4' 8"
142
4' 9"
145
4' 10"
147
4' 11"
150
5'
152
5' 1"
155
5' 2"
157
5' 3"
160
5' 4"
163
5' 5"
165
5' 6"
168
5' 7"
170
5' 8"
173
5' 9"
175
5' 10"
178
5' 11"
180
6'
183
6' 1"
185
6' 2"
188
6' 3"
191
6' 4"
193
6' 5"
195
MINI                                                                      
JUNIOR                                                                      
EXPERT                                                                      
EXPERT XL                                                                      
PRO                                                                      
PRO +                                                                      
PRO XL                                                                      
PRO XL +                                                                      
PRO XXL                                                                      
PRO XXL +                                                                      
PRO XXXL                                                                      
PRO CRUISER                                                                      
PRO + CRUISER